SOLUTION: Please help me solve this problem: The length of a rectangle is 20ft. and the diagonal is 35ft. What is the perimeter of the rectangle

SOLUTION: Please help me solve this problem: The length of a rectangle is 20ft. and the diagonal is 35ft. What is the perimeter of the rectangle

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Question 440708: Please help me solve this problem:
The length of a rectangle is 20ft. and the diagonal is 35ft. What is the perimeter of the rectangle
Answer by Euler(11) (Show Source): You can put this solution on YOUR website!
Okay, so here, you'll apply Pythagoras Theorem:
20^2+x^2=35^2
35^2-20^2=x^2
825=x^2
Taking square root on both sides, we get:
28.723=x
My answer's rounded off to 3 dp. :)
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