## DJ3strella one year ago help me please

1. DJ3strella

2. Sachintha

Use trigonometry.

3. Sachintha

You already know a side and an angle. So use the proper one out of sine, cosine and tangent.

4. tkhunny

You MUST recognize and utilize a 30-60-90 Right Triangle. The ratios of the sides are well-known and should be memorized.

5. Sachintha

6. Sachintha

B will be the answer if you give it a try.

7. anonymous

The answer is B :) good luck

8. tkhunny

The ratios of the sides of a 30-60-90 Right Triangle are: $$Short:Long:Hypotenuse::1:\sqrt{3}:2$$