Question 90292
Hello there,

Denote:

Width = w

Length = 1 + w

A rectangle can form two isosceles triangles, so we can use the Pythagorean Theorem to find the length and width.

a^2 + b^2 = c^2

w^2 + (w + 1)^2 = 4^2

2w^2 + 2w + 1 = 16

2w^2 + 2w - 15 = 0

Find w, and plug them into the short equations for width and length. There you are.