The diagonal of a rectangle is 125 cm and its area is 50 sq. cm. The perimeter of the rectangle must be
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Answer:
249.198716 cm
Step-by-step explanation:
d²= l²+b²
d²= (l+b)²- 2lb ---> using the identity (a+b) ² = a²+b²+2ab
but lb = area
hence, 125²= (l+b)² - 2 x 50
15,625=(l+b)²-100
(l+b) ²= 15,525
(l+b) = 124.599358 cm
perimeter = 2(l+b) = 249.198716 cm
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