Question

the width of a rectangle is 5cm and it's diagonal is 13cm what is the perimeter

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Answer 1

width= 5cm

diagonal= 13cm

so length=√13²-5²

= 12

------>by phythagorus therom

perimeter= 2(l+b)

= 2(5+12)

= 2×17

= 34

hope this helps u....

Answer 2

Answer:

34 cm

Step-by-step explanation:

I have attached a figure for reference.

ABC is a right angled triangle with;

altitude = 5 cm (width)

hypotnuse = 13 cm (diagonal)

Since 5,12,13 are pythagorian triplets,

12cm is the base of ABC .i.e. length of ABCD.

Perimeter of a rectangle = 2(l+b)

= 2(12 + 5 )= 34 cm.

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Hope it helps....!

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