SF Ch 9 Night Before Test Review

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2 × π × radius

Front

What is the value of π (pi) approximately?

Back

π ≈ 3.14

Front

How do you calculate the area of a rectangle?

Back

Area = length × width

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width)

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the difference between area and perimeter?

Back

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

Front

If a circle has a radius of 6 inches, what is its circumference?

Back

Circumference = 37.68 inches

Front

If a rectangle has a length of 12 cm and a width of 9 cm, what is its area?

Back

Area = 108 cm²

Front

If a rectangle has a length of 10 cm and a width of 11 cm, what is its perimeter?

Back

Perimeter = 42 cm

Front

What is the area of a triangle with a base of 6 cm and a height of 4 cm?

Back

Area = 12 cm²