Question

Find the missing side length.

Assume that all intersecting sides meet at right angles.
Be sure to include the correct unit in your answer.
?

Answer 1

9ft

Explanation:

suppose that the side of 7ft was dragged to the right till it meets the side of 4ft

and the unknown side was dragged downwards till it meets the side of 5ft

Then, also considering that all angles are right angles, this structure becomes a square.

So the answer is 14ft - 5ft = 9ft

Answer 2

9ft

Explanation:

14 ft (top) - 5ft (bottom) = missing side (which is 9ft)