Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
A brick is a 3D solid shape known as a cuboid. It has flat rectangular faces, straight edges, and corners called vertices. When you look at a brick from one side, it looks like a 2D rectangle.
When drawing a brick to make it look three-dimensional, we usually show faces at once. In a 2D drawing of a single face, you would only see a rectangle. A standard brick does not have any faces that are shaped like circles or triangles.
Bricks can be arranged in different patterns to make walls strong. In a strong wall, bricks are placed in an overlapping manner so that the vertical joints do not line up in a straight line. A wall where bricks are simply stacked one directly on top of another in columns is very weak and can easily fall.
A 'Jali' is a decorative screen or net-like pattern made by leaving specific gaps between bricks in a wall. These gaps allow light and air to pass through while creating beautiful geometric designs.
A 'Jharokha' is a type of overhanging balcony or window design made with bricks. It usually protrudes from the wall and was very common in old palaces and buildings to provide a view of the outside.
An arch is a curved brick structure used to support weight over openings like doors, windows, or bridges. It is shaped like an upside-down 'U' and is built using special wedge-shaped or thin bricks to create the curve.
Brick sizes can vary, but they are measured by their length, width, and height. To understand the size, we can compare dimensions; for example, a brick might be long, wide, and high.
Old bricks and new bricks are often sold in sets of . This is called the 'Price per thousand bricks'. We use the unitary method to calculate the total cost for different quantities of bricks.
📐Formulae
💡Examples
Problem 1:
Bhajan went to buy bricks. The price of new bricks from Brickabad was for one thousand bricks. If he wants to buy bricks, how much will he pay?
Solution:
- Price of bricks =
- Price of brick =
- Price of bricks =
Explanation:
We first find the cost of a single brick using division and then multiply that unit price by the total number of bricks needed.
Problem 2:
A wall is bricks long and rows high. How many bricks are used to build the wall?
Solution:
- Number of bricks in one row =
- Total number of rows =
- Total bricks =
Explanation:
To find the total number of bricks in a rectangular wall arrangement, multiply the number of bricks in a single row by the total number of rows.