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Find the lateral area of this square based pyramid. 10in 5 in [ ? ]in?​

Find the lateral area of this square based pyramid. 10in 5 in [ ? ]in?​-example-1
User Kyte
by
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2 Answers

3 votes

Answer: 100

Step-by-step explanation: each side has an area of 10*5/2, or 25, and there are 4 lateral sides, so times 4, it's 100

User Brian Putnam
by
3.9k points
5 votes

Answer:

Explanation:

Lateral area, Al = a√(a² + 4h²)

Where,

a = base edge = 5 in

h = height = 10 in

Lateral area, Al = a√(a² + 4h²)

= 5√(5² + 4*10²)

= 5√(25 + 4*100)

= 5√(25 + 400)

= 5√425

= 5 * 20.615528128088

= 103.07764064044

Approximately,

Lateral area = 103.08 in²

User Nico Erfurth
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4.7k points