Area and Perimeter of Rectangles and Triangles

Front

What is the formula for the area of a rectangle?

Back

Area = b ⋅ h, where b is the base and h is the height.

Front

What is the formula for the area of a triangle?

Back

Area = (1/2) ⋅ b ⋅ h, where b is the base and h is the height.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2(b + h), where b is the base and h is the height.

Front

How do you calculate the perimeter of a triangle?

Back

Perimeter = a + b + c, where a, b, and c are the lengths of the sides of the triangle.

Front

If a rectangle has a base of 6 cm and a height of 4 cm, what is its area?

Back

Area = 6 cm ⋅ 4 cm = 24 cm².

Front

If a triangle has a base of 10 cm and a height of 6 cm, what is its area?

Back

Area = (1/2) ⋅ 10 cm ⋅ 6 cm = 30 cm².

Front

What is the relationship between the area and perimeter of a rectangle?

Back

Area measures the space inside the rectangle, while perimeter measures the distance around it.

Front

What units are used to measure area?

Back

Area is measured in square units, such as cm², m², etc.

Front

What units are used to measure perimeter?

Back

Perimeter is measured in linear units, such as cm, m, etc.

Front

How does changing the dimensions of a rectangle affect its area?

Back

Increasing either the base or height increases the area; decreasing either decreases the area.