Geometry- Please help!

Question

anonymous · Answer

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

anonymous · Answer

20

anonymous · Answer

You have to 30-60-90 triangles. Using the ratio of the sides, find the measure of the whole side, AC
AC: 10√3 is the side oppostie the 30º, so the measure of the side opposite the 650 is 10√3*√3 = 30
Now, find the measure of the side BC.
BC = 10
Now subtract the two sides.
AC - BC = AB
30 - 10 = ?

anonymous · Answer

sorry we have to convert feet to metre...1feet=0.3metre...

anonymous · Answer

But still its not coming

anonymous · Answer

Sorry, you were right, those weren't the right options lol. Thanks!