Area of composite figures 7th grade

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.

Front

How do you find the area of a rectangle?

Back

Area = length × width.

Front

What is a composite figure?

Back

A shape made up of two or more simple shapes.

Front

How do you calculate the area of a semi-circle?

Back

Area = (1/2)πr², where r is the radius.

Front

What is the area of a square with a side length of 5 cm?

Back

Area = 5 cm × 5 cm = 25 cm².

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its area?

Back

Area = 10 cm × 4 cm = 40 cm².

Front

What shapes can make up a composite figure?

Back

Common shapes include rectangles, triangles, circles, and semi-circles.

Front

How do you find the area of a triangle?

Back

Area = (1/2) × base × height.

Front

What is the area of a circle with a radius of 3 cm?

Back

Area = π(3 cm)² ≈ 28.26 cm².

Front

What is the area of a rectangle with a length of 8 cm and a width of 3 cm?

Back

Area = 8 cm × 3 cm = 24 cm².