In the right triangle find the length of the side not given

In the right triangle, find the length of the side not given. Give an exact answer and an approximation to three decimal places. a 7, b-9 Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A Using radicals, c is exactly The c, up to three decimal places, is approximately O B. The c, is exactly No approximation is necessary.

Solution

The given triangle is a right angle triangle.

Therefore by the property c² = a² + b²

c² = 7² + 9²

c² = 49+ 81

c² = 130

c = 11.4