Area & Perimeter of Composite Figures

Front

What is the area of a circle?

Back

A = πr², where r is the radius.

Front

What is the formula for the area of a rectangle?

Back

A = length × width.

Front

What is the formula for the area of a triangle?

Back

A = 1/2 × base × height.

Front

What is a composite figure?

Back

A shape made up of two or more simple shapes.

Front

How do you find the area of a composite figure?

Back

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

Front

What is the perimeter of a rectangle?

Back

P = 2(length + width).

Front

What is the formula for the perimeter of a triangle?

Back

P = side1 + side2 + side3.

Front

What does 'circumference' refer to?

Back

The distance around a circle.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr or C = πd.

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape; perimeter measures the distance around a shape.