Question

Which triangle is a 30°-60°-90° triangle?

Answer 1

The first one is correct

Explanation:

I got a 100 on the test, hope this helps

Answer 2

Option A

Explanation:

30° - 60° - 90° triangle:

The ratio of the side of 30-60-90 triangle is x : x√3 : 2x

The angle opposite to 90° = 2x

2x = 10

x = 10÷2

x = 5

The side opposite to 30° is x which is 5.

The side opposite to 60° is x√3 = 5√3

The ratio of sides of 30-60-90 triangle:

5 : 5√3 : 10