15.8k views
2 votes
This image shows a square pyramid.

What is the surface area of this square pyramid?

This image shows a square pyramid. What is the surface area of this square pyramid-example-1
User Grouchal
by
6.9k points

2 Answers

4 votes

The answer is 200 ft²

User Ilise
by
7.4k points
3 votes
Area of the base =10*10=100 ft² because it is a square
We have 4 triangles,the big triangle is divided into 2 small.
Small triangle -1) right, 2) isosceles because it has one angle 45°, so another angle is also 45°(45+45+90=180),3) because it is isosceles, it has 2 equal sides, that are legs, the are =5 ft,4) area of small triangle= (5*5)/2=25/2
Large triangle=2*25/2=25
Area of all triangles =25*4=100
Whole area =100+100=200 ft²
User Jos Vinke
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories