Answer: It is C
Step-by-step explanation:
For each triangle sum of it's angles must add to 180°.
We need to check if these angles satisfy that condition:
32°+51°+97°=180°
They do satisfy. Now we check if any angle has value that is not possible.
32° and 51° angles are OK.
97° angle is also OK. It is obtuse angle.
For each angle measures exactly one triangle exists. In this example we have an obtuse-angle triangle.
7² + 10² = c² where c = hypotenuse
49 + 100 = c²
149 = c²
c = √149 feet
