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Area

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Parallelograms

You now know how to find the area of a parallelogram, but what happens if you need to find the base or the height? You just have to rearrange the formula.

A = b × h

h = A ÷ b

b = A ÷ h

Question
Area of a parallelogram

Q1. The area of this parallelogram is 12cm2. What is its perpendicular height?

Q2. Find the length of the base of this parallelogram:

Area of a parallelogram. Area = 40 cm squared
Answer

A1. h = A ÷ b
h = 12 ÷ 4 = 3cm

A2. b = A ÷ h
b = 40 ÷ 5 = 8cm

Remember to divide the area by the perpendicular height.

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Activity

Area activity

In the right area? Find out with this activity.

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Questionaut

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