Question

find the length of a rectangle whose breadth is 5 m and diagonal is 13m

Answer 1

diagonals is 13m
breadth is 5m
according to pythagoras theorem
5^2 + length^2 = 13^2
length^2 = 169 - 25
length^2 = 144
length^2 = 12^2
length = 12

Answer 2

length of diagonal=13 m

breadth = 5 m

Using Pythagoras theorem in triangle BCD,

BD²=BC² + CD²

13²= BC² + 5²

169 = BC² + 25

BC² = 169-25

BC² = 144

BC = 12 m

Therefore length of rectangle is 12 m.