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Find the lateral area of the prism.7cm5cm5cmLateral Area = [?]cm2

Find the lateral area of the prism.7cm5cm5cmLateral Area = [?]cm2-example-1
User Jason Whitish
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1 Answer

19 votes
19 votes

Lateral Area of the Prism

The lateral area of a prism is the area of the vertical faces, not including the base or the top.

The formula to calculate the lateral area of a prism is:


A=P\cdot H

Where P is the perimeter of the base and H is the height of the prism.

The base of the prism is a square of dimensions 5 cm by 5 cm, thus its perimeter is:

P = 4*5 cm = 20 cm

The height of the prism is H=7 cm, so the lateral area is:


A=20\operatorname{cm}\cdot7\operatorname{cm}=140\operatorname{cm}^2

Lateral Area = 140 square cm

User Javier Ros
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