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Geometry

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

Angle Properties of Lines, Triangles, and Polygons

Subtopic

Angle Properties of Lines, Triangles, and Polygons under Geometry for Grade 8 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the size of one exterior angle of a regular 15-sided polygon?

    A.

    24∘24^\circ

    B.

    36∘36^\circ

    C.

    156∘156^\circ

    D.

    15∘15^\circ

  2. 2.

    An exterior angle of a triangle is equal to:

    A.

    The sum of the two opposite interior angles

    B.

    The sum of all three interior angles

    C.

    The adjacent interior angle

    D.

    Always 180∘180^\circ

  3. 3.

    How is a triangle with three unequal sides and three unequal angles classified?

    A.

    Isosceles

    B.

    Equilateral

    C.

    Scalene

    D.

    Right-angled

Download the worksheet for Geometry - Angle Properties of Lines, Triangles, and Polygons to practice offline. It includes additional chapter-level practice questions.

Symmetry and Transformations (Translation, Rotation, Reflection, Enlargement)

Subtopic

Symmetry and Transformations (Translation, Rotation, Reflection, Enlargement) under Geometry for Grade 8 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following describes the rotational symmetry of the letter 'N'?

    A.

    Order 1

    B.

    Order 2

    C.

    Order 4

    D.

    Order 0

  2. 2.

    If an enlargement center is (0,0)(0,0) and the scale factor is 22, where does the point (1,2)(1, 2) move to?

    A.

    (2, 4)

    B.

    (3, 4)

    C.

    (2, 2)

    D.

    (0.5, 1)

  3. 3.

    How many lines of symmetry does a non-isosceles scalene triangle have?

    A.

    1

    B.

    3

    C.

    0

    D.

    2

Download the worksheet for Geometry - Symmetry and Transformations (Translation, Rotation, Reflection, Enlargement) to practice offline. It includes additional chapter-level practice questions.

Pythagoras' Theorem

Subtopic

Pythagoras' Theorem under Geometry for Grade 8 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the hypotenuse of a right-angled triangle with legs of 36 mm36\text{ mm} and 48 mm48\text{ mm}?

    A.

    84 mm84\text{ mm}

    B.

    60 mm60\text{ mm}

    C.

    72 mm72\text{ mm}

    D.

    66 mm66\text{ mm}

  2. 2.

    In a right-angled triangle, the legs are 24 cm24\text{ cm} and 32 cm32\text{ cm}. Determine the hypotenuse.

    A.

    40 cm40\text{ cm}

    B.

    56 cm56\text{ cm}

    C.

    48 cm48\text{ cm}

    D.

    44 cm44\text{ cm}

  3. 3.

    Calculate the hypotenuse of a right triangle with legs of length 120 m120\text{ m} and 160 m160\text{ m}.

    A.

    280 m280\text{ m}

    B.

    240 m240\text{ m}

    C.

    250 m250\text{ m}

    D.

    200 m200\text{ m}

Download the worksheet for Geometry - Pythagoras' Theorem to practice offline. It includes additional chapter-level practice questions.

Properties of Circles

Subtopic

Properties of Circles under Geometry for Grade 8 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Find the area of a circle with a diameter of 6 units6\text{ units} in terms of π\pi.

    A.

    36π36\pi

    B.

    12π12\pi

    C.

    9π9\pi

    D.

    6π6\pi

  2. 2.

    What is the circumference of a circle if the radius is 0.5 cm0.5\text{ cm}? (Use π≈3.14\pi \approx 3.14)

    A.

    1.57 cm1.57\text{ cm}

    B.

    3.14 cm3.14\text{ cm}

    C.

    0.785 cm0.785\text{ cm}

    D.

    6.28 cm6.28\text{ cm}

  3. 3.

    If a circle has a diameter of 7 cm7\text{ cm}, find the radius.

    A.

    14 cm14\text{ cm}

    B.

    4.5 cm4.5\text{ cm}

    C.

    3.5 cm3.5\text{ cm}

    D.

    2.5 cm2.5\text{ cm}

Download the worksheet for Geometry - Properties of Circles to practice offline. It includes additional chapter-level practice questions.

Geometrical Constructions and Loci

Subtopic

Geometrical Constructions and Loci under Geometry for Grade 8 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the locus of a point PP such that the distance from PP to a fixed point OO is zero?

    A.

    A circle

    B.

    A line

    C.

    The point OO itself

    D.

    Empty set

  2. 2.

    When constructing an equilateral triangle with side ABAB, where do you place the compass point to draw the first arc?

    A.

    At the midpoint of ABAB

    B.

    At point AA

    C.

    At any point not on ABAB

    D.

    At point BB only

  3. 3.

    The locus of points 2 cm2\text{ cm} from a circle of radius 5 cm5\text{ cm} (in the exterior) is a circle of radius:

    A.

    3 cm3\text{ cm}

    B.

    7 cm7\text{ cm}

    C.

    10 cm10\text{ cm}

    D.

    5 cm5\text{ cm}

Download the worksheet for Geometry - Geometrical Constructions and Loci to practice offline. It includes additional chapter-level practice questions.