Question

Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a flagpole, as shown below:

Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a flagpole. Angle ADB measures 60 degrees and angle BDC measures 30 degrees. The length of DC is 10 multiplied by square root of 3.

Angle ADC measures 60° and angle BDC measures 30°. What is the distance between the points A and B on the flagpole?

40 feet

20 feet

30 feet

10 feet

Answer 1

Hint: you're gonna use a lot of 30-60-90 triangles

Answer 2

Those just really confuse me

Answer 3

Ok.
Here's one theorem u will use.

The side opposite the 30 degree angle is 1/2 the hypotenuse