SOLUTION: The diagonals of s rectangle are 10 cm long. Find the extract dimensions of the rectangle if the length is twice the width

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Question 1040165: The diagonals of s rectangle are 10 cm long. Find the extract dimensions of the rectangle if the length is twice the width
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Either diagonal forms two right triangles composing the rectangle.
L=2w-----given.

w%5E2%2BL%5E2=10%5E2

w%5E2%2B%282w%29%5E2=100

5w%5E2=100

w%5E2=20

w=2sqrt%285%29