To find the width of Fiona's TV, we can use the Pythagorean theorem, which states that the square of the length of the diagonal of a right triangle is equal to the sum of the squares of the lengths of its two other sides.
Let the width of Fiona's TV be x inches. Then, the length of the TV is 20 inches.
According to the Pythagorean theorem:
x^2 + 20^2 = 25^2
x^2 + 400 = 625
x^2 = 625 - 400
x^2 = 225
x = √225
x = 15
Therefore, the width of Fiona's TV is 15 inches.
Fiona’s TV screen is 20 inches long. The diagonal measures 25 inches. How long is the width of Fiona's TV?
1 answer