Area and Perimeter Review

Front

What is the formula for the area of a circle?

Back

Area = π × r², where r is the radius.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What mistake did Sally make when calculating the area of a circle?

Back

Sally used diameter instead of the radius.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the surface area of a rectangular prism?

Back

Surface Area = 2(lw + lh + wh), where l = length, w = width, h = height.

Front

How do you find the area of a parallelogram?

Back

Area = base × height.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2 × π × r, where r is the radius.

Front

If the length of a rectangle is 9 inches and the width is 4 inches, what is the area?

Back

Area = 9 in × 4 in = 36 in².

Front

What is the surface area of a triangular prism?

Back

Surface Area = (base area × 2) + (perimeter × height).