Question

The width of a rectangle is 5 om and its diagonal is 13 cm
What is its perimeter?​

Answer 1

as we know that all angles of a reactanges are 90°

that means it forms a right angled traingle when divided by a digonal

apply pythagoras theorem and find the length using pythagora theorem

let the length be l

(l)^2 + (5)^2 = (13)^2

l^2 = 169 - 25

l^2 = 144

l = 12

so, the length measure 12 cm.

we got the length and know the breadth so,

to find the perimeter apply the formula

2 (l +b)

2 (5 + 12)

2 (17)

34 cm

Read more on Brainly.in - https://brainly.in/question/1509076#readmore

Answer 2

Perimeter of rectangle = 2(l+b)

= 2(5+12) = 2×17

• = 34cm.

Please follow me

Thanks plzz..... ❤❤❤

By Pythagoras theorem Length= 12cm(13^2-5^2)=169-25=√144=12