Question

David's study table is 20 inches long. If the diagonal measures 25 inches, what is the width of David's study table?

Answer 1

Simply use Pythagoras theorem....

25^2 - 20^2 = 625 - 400= 225

taking square root

width= √225 = 15 inch

Thank you...

Answer 2

Step-by-step explanation:

(diagonal)² = (length)² + (width)²

(25)² = (20)² + (width)²

(width)² = (25)² - (20)²

(width)² = 625 - 400 = 225

width = √225

= 15 inches

So , David's study table is 15 inches wide .