Question

Find the length
......

Answer 1

The dotted line has a length of 14.5

Explanation:

Hypotenuse- c^2= a^2 + b^2

Answer 2

• 14.5 units

Explanation:

Use Pythagorean to find the required length

Dotted line is the diagonal of the rectangle, let it be d

Missing side of the rectangle is the hypotenuse of the right triangle, let it be a

• d² = a² + 9² = 9² + 7² + 81 = 130 + 81 = 211
• d = √211 = 14.5 (rounded)