Question

Robert bought an LED television set that is 32 inches long. The diagonal length

measures 40 inches. What is the width of the television screen?
Pythagorean

Answer 1

You can draw it out
Make a right triangle from the square

Diagonal length = hypothenuse
Use Pythagorean theorem as stated
a^2 + b^2 = c^2
32^2 + b^2 = 40^2
1024 + b^2 = 1600
b^2 = 576
Square root of 576 = 24

Solution: the width is 24 inches