Question

The measure of the diagonal of a rectangle is 5 cm. If one of its
sides is 3 cm, then find its perimeter.

Answer 1

Answer:

it's perimeter will be 20cm

Step-by-step explanation:

as per we know that diagonal is a sum of its one breadth and one length is equal to its diagonal

I hope this was useful for

Answer 2

Step-by-step explanation:

diagonal of rectangle = 5cm

one side of rectangle= 3cm

let the other side of rectangle= x cm

perimeter of rectangle= 2(l+b)

= 2(x+3)

= 2x+6

we can find the other side of rectangle by using Pythagoras theorem

${h}^{2} = {b}^{2} + {p}^{2}$

${25}^{2} = {x}^{2} + {3}^{2}$

$25 = {x}^{2} + 9$

$x = \sqrt{25 - 9}$

$x = 4 \: cm$

perimeter= 2(4) +6

= 8+6

= 14 cm

answer : perimeter of rectangle is 14cm