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Can someone help my Brian is fried. Plz show how u got the answer

What is the perimeter of this triangle?

PLZ Can someone help my Brian is fried. Plz show how u got the answer What is the-example-1

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Answer:

90

Explanation:

Using the Pythagorean Theorem, with the missing side being x, 9²+x²=40², and x=√(40²+9²)=41. Adding the 3 sides up, we get 90

User Martin Brown
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