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 rectangle is equal to the sum of the squares of its width and length.
Let the width of Fiona's TV be x inches.
Using 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?
? inches
1 answer
1 answer