A rectangle measures 8 cm on length. Its diagonal measures 10 cm. What is the perimeter of the rectangle?

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RRB TC CC Exam (Mumbai) 2006 click here to view all questions

A rectangle measures 8 cm on length. Its diagonal measures 10 cm. What is the perimeter of the rectangle?

A36 cm

B38 cm

C 28 cm

D18 cm

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Answer is : 28 cm Let the breadth of rectangle = x cm so, $x^2 + 8^2 = 10^2$ $x^2 + 64 =100$ $x^2 = 100 -64$ $x^2 = 36$ $x = 6$ Perimeter = 2 (length + breadth) =2(8 + 6) =2(14) =28 Akilesh Kharvi ? answered Nov 6 '2016 at 23:13 All Comments

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