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Mathematics 58 Online
OpenStudy (anonymous):

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

OpenStudy (anonymous):

OpenStudy (nikato):

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

OpenStudy (anonymous):

Those just really confuse me

OpenStudy (nikato):

Ok. Here's one theorem u will use. The side opposite the 30 degree angle is 1/2 the hypotenuse

OpenStudy (joannablackwelder):

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