Question

Find the perimeter of the rectangle whose length is 40 cm and a diagonal is 41 cm​

Answer 1

Length =40cm

Diagonal= 41cm

P=2(l+w)

d=root(w2+L2)

P=2l+2root(d2﹣l2) =

2*40+2*root(412-402) =98cm

Answer 2

Answer:

Refer to the attachment above. ⬆️

hope it helps!!