Math 1 Flashcard - Area and Perimeter of Shapes

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height

Front

How do you calculate the area of a rectangle?

Back

Area = length * width

Front

What is the formula for the area of a circle?

Back

Area = π * radius²

Front

Define perimeter.

Back

Perimeter is the total distance around a shape.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 * (length + width)

Front

How do you find the circumference of a circle?

Back

Circumference = 2 * π * radius

Front

What is a composite figure?

Back

A composite figure is 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 triangle with a base of 6 ft and a height of 4 ft?

Back

Area = 1/2 * 6 * 4 = 12 ft²

Front

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

Back

Area = 10 * 5 = 50 in²