Question

The length of a rectangle is 12 cm and its diagonal is 13 cm. Find the perimeter of rectangle.

Answer 1

therefore, the other side will be 5 cm by Pythagoras theorem
perimeter= 2(12+5)
hence, the perimeter will be 34cm

Answer 2

Hey mate!

Here is your answer > >

Length of a rectangle = 12 cm

Diagonal of a rectangle=13 cm

Breadth of a rectangle=?

We know that

d^2=l^2+b^2

13^2=12^2+b^2

169-144=b^2

25=b^2

b=5 cm

So, breadth of rectangle=5 cm

Perimeter of rectangle = 2 ( l + b )

=> Perimeter=2 (12+5)

=2 (17)

=34 cm

Answer=34 cm

Hope it helps!

Thankyou ☆ ☆