Answer:
a = 9 in
Explanation:
Using Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is
a² + 5.6² = 10.6²
a² + 31.36 = 112.36 ( subtract 31.36 from both sides )
a² = 81 ( take square root of both sides )
a =
= 9