Area and Perimeter

Front

What is the formula for finding the area of a triangle?

Back

A = 1/2 * base * height

Front

What is the area of a triangle with a base of 16 cm and a height of 8 cm?

Back

64 sq cm

Front

What is the formula for finding the area of a rectangle?

Back

A = l • w

Front

What is the perimeter of a rectangle?

Back

Perimeter = 2(l + w) where l is length and w is width.

Front

If the perimeter of a shape is 42 inches and the side lengths are 12 in, 7 in, and 21 in, what is the length of the missing side?

Back

2 inches

Front

What is the formula for finding the area of a trapezoid?

Back

A = 1/2 * (b1 + b2) * h where b1 and b2 are the lengths of the two bases and h is the height.

Front

What is the area of a trapezoid with bases of 5 cm and 3 cm, and a height of 4 cm?

Back

16 sq cm

Front

What is the perimeter of a rectangle with a length of 10 feet and a width of 4 feet?

Back

28 feet

Front

What is the area of a rectangle with a length of 10 cm and a width of 5 cm?

Back

50 sq cm

Front

What is the formula for finding the perimeter of a polygon?

Back

Add the lengths of all the sides.