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Surface Areas and Volumes

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Surface Area of a Cuboid and a Cube

Subtopic

Surface Area of a Cuboid and a Cube under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The total surface area of a cube with side aa is given by the formula:

    A.

    4a24a^2

    B.

    a2a^2

    C.

    6a26a^2

    D.

    a3a^3

  2. 2.

    A cuboid has length 10 cm10\text{ cm}, breadth 1 cm1\text{ cm}, and height 10 cm10\text{ cm}. Its total surface area is:

    A.

    240 cm2240\text{ cm}^2

    B.

    220 cm2220\text{ cm}^2

    C.

    120 cm2120\text{ cm}^2

    D.

    110 cm2110\text{ cm}^2

  3. 3.

    If the side of a cube is 1 cm1\text{ cm}, what is its lateral surface area?

    A.

    6 cm26\text{ cm}^2

    B.

    1 cm21\text{ cm}^2

    C.

    2 cm22\text{ cm}^2

    D.

    4 cm24\text{ cm}^2

Download the worksheet for Surface Areas and Volumes - Surface Area of a Cuboid and a Cube to practice offline. It includes additional chapter-level practice questions.

Surface Area of a Right Circular Cylinder

Subtopic

Surface Area of a Right Circular Cylinder under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The circumference of the base of a cylinder is 44 cm44 \text{ cm} and its height is 10 cm10 \text{ cm}. What is its curved surface area?

    A.

    440 cm2440 \text{ cm}^2

    B.

    220 cm2220 \text{ cm}^2

    C.

    880 cm2880 \text{ cm}^2

    D.

    660 cm2660 \text{ cm}^2

  2. 2.

    Find the curved surface area of a cylinder with radius 1 cm1 \text{ cm} and height 1 cm1 \text{ cm} in terms of π\pi.

    A.

    π cm2\pi \text{ cm}^2

    B.

    2π cm22\pi \text{ cm}^2

    C.

    4π cm24\pi \text{ cm}^2

    D.

    0.5π cm20.5\pi \text{ cm}^2

  3. 3.

    The total surface area of a cylinder with radius rr and height hh is 2πr(r+h)2\pi r(r + h). If h=0h = 0, the formula becomes:

    A.

    2πr22\pi r^2

    B.

    00

    C.

    πr2\pi r^2

    D.

    2πr2\pi r

Download the worksheet for Surface Areas and Volumes - Surface Area of a Right Circular Cylinder to practice offline. It includes additional chapter-level practice questions.

Surface Area of a Right Circular Cone

Subtopic

Surface Area of a Right Circular Cone under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If the slant height of a cone is tripled and the radius is halved, the new curved surface area is how many times the original?

    A.

    1.51.5 times

    B.

    33 times

    C.

    66 times

    D.

    22 times

  2. 2.

    A cone has a radius of 4 cm4 \text{ cm} and a slant height of 5 cm5 \text{ cm}. Find its total surface area in terms of π\pi.

    A.

    20π cm220\pi \text{ cm}^2

    B.

    36π cm236\pi \text{ cm}^2

    C.

    16π cm216\pi \text{ cm}^2

    D.

    9π cm29\pi \text{ cm}^2

  3. 3.

    Find the curved surface area of a cone with diameter 14 m14 \text{ m} and slant height 25 m25 \text{ m}.

    A.

    550 m2550 \text{ m}^2

    B.

    1100 m21100 \text{ m}^2

    C.

    350 m2350 \text{ m}^2

    D.

    700 m2700 \text{ m}^2

Download the worksheet for Surface Areas and Volumes - Surface Area of a Right Circular Cone to practice offline. It includes additional chapter-level practice questions.

Surface Area of a Sphere and Hemisphere

Subtopic

Surface Area of a Sphere and Hemisphere under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The total surface area of a hemisphere is 18.48 cm218.48 \text{ cm}^2. Its radius is:

    A.

    2.8 cm2.8 \text{ cm}

    B.

    0.7 cm0.7 \text{ cm}

    C.

    2.1 cm2.1 \text{ cm}

    D.

    1.4 cm1.4 \text{ cm}

  2. 2.

    The diameter of a hemispherical bowl is 1.4 cm1.4 \text{ cm}. Find its inner curved surface area.

    A.

    1.54 cm21.54 \text{ cm}^2

    B.

    3.08 cm23.08 \text{ cm}^2

    C.

    6.16 cm26.16 \text{ cm}^2

    D.

    12.32 cm212.32 \text{ cm}^2

  3. 3.

    Calculate the curved surface area of a hemisphere with radius 4.2 cm4.2 \text{ cm}.

    A.

    110.88 cm2110.88 \text{ cm}^2

    B.

    55.44 cm255.44 \text{ cm}^2

    C.

    166.32 cm2166.32 \text{ cm}^2

    D.

    221.76 cm2221.76 \text{ cm}^2

Download the worksheet for Surface Areas and Volumes - Surface Area of a Sphere and Hemisphere to practice offline. It includes additional chapter-level practice questions.

Volume of a Cuboid and Cube

Subtopic

Volume of a Cuboid and Cube under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Find the volume of a cuboid whose sides are 4 cm4 \text{ cm}, 3 cm3 \text{ cm}, and 2 cm2 \text{ cm}.

    A.

    9 cm39 \text{ cm}^3

    B.

    24 cm324 \text{ cm}^3

    C.

    12 cm312 \text{ cm}^3

    D.

    14 cm314 \text{ cm}^3

  2. 2.

    How many litres of water can a 1 m31 \text{ m}^3 tank hold? (Given 1 m3=1000 litres1 \text{ m}^3 = 1000 \text{ litres})

    A.

    10 litres10 \text{ litres}

    B.

    100 litres100 \text{ litres}

    C.

    1000 litres1000 \text{ litres}

    D.

    10000 litres10000 \text{ litres}

  3. 3.

    Find the volume of a cube of side 40 cm40 \text{ cm}.

    A.

    1600 cm31600 \text{ cm}^3

    B.

    64000 cm364000 \text{ cm}^3

    C.

    120 cm3120 \text{ cm}^3

    D.

    6400 cm36400 \text{ cm}^3

Download the worksheet for Surface Areas and Volumes - Volume of a Cuboid and Cube to practice offline. It includes additional chapter-level practice questions.

Volume of a Cylinder

Subtopic

Volume of a Cylinder under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If the base area of a cylinder is 15 cm215\text{ cm}^2 and the height is 6 cm6\text{ cm}, what is its volume?

    A.

    45 cm345\text{ cm}^3

    B.

    60 cm360\text{ cm}^3

    C.

    90 cm390\text{ cm}^3

    D.

    30 cm330\text{ cm}^3

  2. 2.

    Find the volume of a cylinder with radius 4 cm4\text{ cm} and height 14 cm14\text{ cm}. (Use π=227\pi = \frac{22}{7})

    A.

    704 cm3704\text{ cm}^3

    B.

    352 cm3352\text{ cm}^3

    C.

    1408 cm31408\text{ cm}^3

    D.

    176 cm3176\text{ cm}^3

  3. 3.

    The diameter of a cylinder is 14 cm14\text{ cm} and its height is 20 cm20\text{ cm}. Find the volume. (Use π=227\pi = \frac{22}{7})

    A.

    1540 cm31540\text{ cm}^3

    B.

    3080 cm33080\text{ cm}^3

    C.

    6160 cm36160\text{ cm}^3

    D.

    770 cm3770\text{ cm}^3

Download the worksheet for Surface Areas and Volumes - Volume of a Cylinder to practice offline. It includes additional chapter-level practice questions.

Volume of a Right Circular Cone

Subtopic

Volume of a Right Circular Cone under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A right circular cone has a base diameter of 14 cm14 \text{ cm} and a height of 15 cm15 \text{ cm}. Find its volume. (Use π=227\pi = \frac{22}{7})

    A.

    2310 cm32310 \text{ cm}^3

    B.

    1540 cm31540 \text{ cm}^3

    C.

    385 cm3385 \text{ cm}^3

    D.

    770 cm3770 \text{ cm}^3

  2. 2.

    Find the volume of a cone with radius 0.5 cm0.5 \text{ cm} and height 12 cm12 \text{ cm} in terms of π\pi.

    A.

    π cm3\pi \text{ cm}^3

    B.

    2π cm32\pi \text{ cm}^3

    C.

    3π cm33\pi \text{ cm}^3

    D.

    4π cm34\pi \text{ cm}^3

  3. 3.

    The volume of a cone is 308 cm3308 \text{ cm}^3 and its radius is 7 cm7 \text{ cm}. Find its height. (Use π=227\pi = \frac{22}{7})

    A.

    3 cm3 \text{ cm}

    B.

    6 cm6 \text{ cm}

    C.

    9 cm9 \text{ cm}

    D.

    12 cm12 \text{ cm}

Download the worksheet for Surface Areas and Volumes - Volume of a Right Circular Cone to practice offline. It includes additional chapter-level practice questions.

Volume of a Sphere and Hemisphere

Subtopic

Volume of a Sphere and Hemisphere under Surface Areas and Volumes for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A sphere has a radius of 4.54.5 cm. Find its volume in terms of π\pi.

    A.

    121.5π121.5\pi cm3^3

    B.

    243π243\pi cm3^3

    C.

    60.75π60.75\pi cm3^3

    D.

    182.25π182.25\pi cm3^3

  2. 2.

    What is the volume of a hemisphere of radius 77 cm? (Take π=227\pi = \frac{22}{7})

    A.

    718.67718.67 cm3^3

    B.

    1437.331437.33 cm3^3

    C.

    359.33359.33 cm3^3

    D.

    10781078 cm3^3

  3. 3.

    Calculate the volume of a hemisphere with a radius of 55 cm. (Take π=3.14\pi = 3.14)

    A.

    261.67261.67 cm3^3

    B.

    523.33523.33 cm3^3

    C.

    130.83130.83 cm3^3

    D.

    392.50392.50 cm3^3

Download the worksheet for Surface Areas and Volumes - Volume of a Sphere and Hemisphere to practice offline. It includes additional chapter-level practice questions.

Surface Areas and Volumes - Class 9 Maths (CBSE) | Krit.club