Area of Composite/Shaded Region

Front

What is the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the area of a circle?

Back

Area = π × radius² (use 3.14 for π).

Front

How do you find the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is a composite shape?

Back

A shape made up of two or more simple shapes.

Front

How do you calculate the area of a composite shape?

Back

Find the area of each simple shape and sum them up.

Front

What is the area of a shaded region?

Back

Area of the larger shape minus the area of the unshaded part.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its area?

Back

Area = 10 cm × 5 cm = 50 cm².

Front

What is the area of a circle with a radius of 2 cm? (use 3.14 for π)

Back

Area = 3.14 × (2 cm)² = 12.56 cm².

Front

How do you find the area of a semicircle?

Back

Area = 1/2 × π × radius².

Front

What is the area of a triangle with a base of 8 cm and a height of 5 cm?

Back

Area = 1/2 × 8 cm × 5 cm = 20 cm².