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The length of a rectangle is twice the width and diagonal is 25cm work out the area of the rectangle?
Wiki User
∙ 13y ago
Let length be 2x and the width be x and use Pythagoras' theorem:
2x2+x2 = 252
3x2 = 625
Divide both sides by 3 and then square root both sides:
x = 14.43375673 cm
2x = 28.86751346 cm
Area = 2x*x = 416 and 2/3 square cm
Wiki User
∙ 13y ago
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