# Question #8e8ab

Apr 11, 2017

I got $15 \text{in}$

#### Explanation:

Let us have a look at it:

We can use Pythagoras Theorem and write:
${a}^{2} + {b}^{2} = {d}^{2}$

${8}^{2} + {b}^{2} = {17}^{2}$
${b}^{2} = {17}^{2} - {8}^{2}$
$b = \sqrt{{17}^{2} - {8}^{2}} = 15 \text{in}$