Question

12 a tv screen has a 25 inch diagonal and a 15 inch height. what is the area of the screen to the nearest square inch? 15 in 25 in

Explanation:

Step1: Use Pythagorean theorem for width

Let width = $w$, height = 15, diagonal = 25.
$w^2 + 15^2 = 25^2$
$w^2 = 25^2 - 15^2 = 625 - 225 = 400$
$w = \sqrt{400} = 20$

Step2: Calculate area of screen

Area = width × height = $20 × 15 = 300$

Answer:

300