Question

Given a right triangle `triangle ABC` with `C=90^circ`, if a=8, c=17, how do you find b?

Answer 1

`b=15`

Explanation:

From Pythagoras, we have:

`a^2+b^2=c^2`

Hence:

`b = sqrt(c^2-a^2) = sqrt(17^2-8^2) = sqrt(289-64) = sqrt(225) = 15`