8-8 Area of Composite Figures with Triangles, Rectangles, Circle

Front

What is the area of a rectangle?

Back

Area = length × width.

Front

How do you find the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the formula for the area of a circle?

Back

Area = π × radius².

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 composite figure?

Back

Find the area of each simple shape and add them together.

Front

What is the area of a square?

Back

Area = side × side.

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its area?

Back

Area = 5 cm × 3 cm = 15 cm².

Front

If a triangle has a base of 4 m and a height of 3 m, what is its area?

Back

Area = 1/2 × 4 m × 3 m = 6 m².

Front

What is the area of a circle with a radius of 2 cm?

Back

Area = π × (2 cm)² ≈ 12.57 cm².

Front

How do you find the area of a shaded region in a composite figure?

Back

Calculate the area of the entire figure and subtract the area of the unshaded part.