Question

the length of a rectangle is twice its breadth. if its diagonal is 4√5cm find the perimeter of the rectangle

Answer 1

Answer:

Step-by-step explanation:

Let the length and breadth of the rectangle be 'l' and 'b'.

Thus, according to the question,

l =2b

Hope it helps...

Answer 2

Answer:

Step-by-step explanation:assume that length is L. And breadth as b.so L=2b.

Diagonals square=length square+breadth square

So 80=L square+b square

80= b square+4b square

5b square=80

b square=16

b=4