Question

Consider a triangle with side lengths of 10 ft, 17.32 ft, and 20 ft. By examining the side lengths, what can you conclude about the measurement of the angles? Explain your reasoning.

Answer 1

10² + 17.32² ≈ 20²

This follows Pythagoras theorem. So it is a right angled triangle. Hence one angle is 90°.

sin⁻¹(10/20) = 30°

Another angle is 30°. The third angle is 60°.

Hope it helps!

Answer 2

The answer is A

Explanation: