Question

the width of a rectangle is 3 feet, and the diagonal is 5 feet. what is the area of the rectangle?

Answer 1

you need to use the pythagorean theorem for this

a^2 + b^2= c^2 (^2 means squared)
b^2 = 5^2 - 3^2
b^2 = 25-9
=16
b = 4

width = 4 feet

Area=l x w
= 3 x 4
=12 square feet