Question

Help picture below problem 18

Answer 1

by using pythagoras theorem

`{h}^(2) = {p}^(2) + {b }^(2) \\ {28}^(2) = {17}^(2) + {es}^(2) \\ {28}^(2) - {17}^(2) = {es}^(2) \\ {es}^(2) = 495 \\ es = √(495) \\ es = 3 √(55)`