Question

the diagonals of a rectangle is 25in. The width is 15 inches. What is the length ? ( Pythagorean theorem c^2 = a^2 + b^2)

Answer 1

20

Explanation:

(You could also use 3-4-5 method, 15, 20 , 25)

`15^(2) +x^(2) =25^(2)\\225+x^(2)=625\\-225 -225\\x^(2)=√(400)\\x = 20\\Length = 20 \\\\\\`