Question

The perimeter of a rectangle is 42 m and the length of its diagonal is 15 m . What are the length of its sides?

Answer 1

Answer:

Yes! Here's your answer!

Step-by-step explanation:

p= 2(l+w)

d= √(w^2+l^2)

There are two solutions for l

(i) l = p/4 +1/4 √8d^2 - p^2

= 42/4 +1/4.√8.15^2-42^2 =12 m

(ii) I= p/4-1/4 √8d^2-p^2

=  42/p - 1/4.√8.15^2-42^2 = 9 m