Question

The longer side of a rectangle is 3cm longer than it’s shorter side if the diagonal is 15cm. What is the area of the rectangle?

Answer 1

Waiting

Answer 2

Pls help me i need the solution

Answer 3

geez -- impatient much?
If the shorter side is x, then
x^2 + (x+3)^2 = 15^2
so now just solve for x.

Or, you might recognize this triangle as a 3-4-5 right triangle, scaled up by a factor of 3.