Geometry Review

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Front

How do you calculate the area of a parallelogram?

Back

Area = base × height.

Front

If a parallelogram has a base of 35 cm and an area of 700 cm², what is its height?

Back

Height = Area / Base = 700 cm² / 35 cm = 20 cm.

Front

What is the formula for the area of a triangle?

Back

Area = (base × height) / 2.

Front

If a triangle has a base of 12 cm and a height of 21 cm, what is its area?

Back

Area = (12 cm × 21 cm) / 2 = 126 cm².

Front

What is surface area?

Back

Surface area is the total area of the surface of a three-dimensional object.

Front

How do you calculate the surface area of a rectangular prism?

Back

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

Front

If a rectangular prism has dimensions 5 cm, 4 cm, and 3 cm, what is its surface area?

Back

Surface Area = 2(5×4 + 5×3 + 4×3) = 2(20 + 15 + 12) = 2(47) = 94 cm².

Front

What is volume?

Back

Volume is the amount of space occupied by a three-dimensional object, measured in cubic units.

Front

How do you calculate the volume of a rectangular prism?

Back

Volume = length × width × height.