Question

What is the value of s

Answer 1

Answer:

17

Step-by-step explanation:

First of all, based on the Pythagorean theorem, a^2 + b^2 = c^2

(it's very important that the ∠ABD angle is 90 degrees)

8^2 + 15^2 = s          and           5^2 + 15^2 = CD (but the original question doesn't want the value of CD, so we just need to solve for s)

64 + 225 = 289   now remember, 289 is s^2, and we only want the value of s, so we have to find its square root: √289 = 17

Hope it helped!