Test: Perimeter and Area - Class 5 MCQ

Since each tile covers 1 m², you would need 100 tiles to cover an area of 100 m². This is a straightforward calculation based on the area coverage of each tile.

The perimeter is calculated using the formula 2 × (Length + Breadth). Thus, 2 × (10 cm + 4 cm) = 2 × 14 cm = 28 cm.

To find the area of an irregular shape, you can estimate it by counting the number of square units that completely cover the shape. This method provides a practical way to measure areas that do not fit standard geometric formulas.

The perimeter of any polygon, including a five-sided polygon, is calculated by adding the lengths of all its sides. This gives the total distance around the shape.

To find the length of one side of a square from the perimeter, divide the perimeter by 4. Therefore, 32 cm ÷ 4 = 8 cm. Each side of the square measures 8 cm.

The area of a triangle is found using the formula Area = ½ × base × height. Therefore, Area = ½ × 10 cm × 5 cm = 25 cm².

The perimeter of a square is calculated as 4 × Side. Therefore, 4 × 9 cm = 36 cm.

The area of a rectangle is calculated using the formula Area = Length × Breadth. Therefore, Area = 8 cm × 3 cm = 24 cm².

The perimeter of a rectangle is calculated using the formula 2 × (Length + Breadth), which accounts for both pairs of opposite sides. This formula ensures that the total distance around the rectangle is correctly measured.

The perimeter of a triangle is calculated by adding the lengths of all three sides together, hence the formula is Side a + Side b + Side c.

The perimeter is calculated by adding the lengths of all sides: 7 cm + 5 cm + 10 cm = 22 cm.

First, find the side length by dividing the perimeter by 4: 20 cm ÷ 4 = 5 cm. Then calculate the area: Area = 5 cm × 5 cm = 25 cm².

The area is already given in square units, so it is simply 50 square units. This measurement indicates the total space enclosed within the shape.

To find the side length, divide the perimeter by 4: 48 cm ÷ 4 = 12 cm. Each side of the square measures 12 cm.

The area of a square is calculated by multiplying the side length by itself: Area = 12 cm × 12 cm = 144 cm².

The perimeter is calculated by adding the lengths of all sides: 4 cm + 5 cm + 6 cm + 7 cm = 22 cm. This total gives the distance around the figure.

If the length is doubled, the new perimeter will be 2 × (2l + b), which is double the original perimeter 2 × (l + b). Thus, the perimeter doubles.

The area of a rectangle is found by multiplying its length by its breadth. Thus, Area = 15 m × 10 m = 150 m².

A square is defined as a shape with four equal sides, making it unique among common geometric shapes. This equality of sides contributes to its special properties.

Halving the length while keeping the breadth constant reduces the area to half of its original value because area is directly proportional to length.