## anonymous 3 years ago Find y. image of a triangle whose lower left corner has a box and upper left corner is labeled 30 degrees; the vertical side of the triangle is labeled y and the horizontal side is labeled 9 A. 4.5 B. 18 C. 9 D. 9 times the square root of 3

• This Question is Open
1. anonymous

2. anonymous

Im pretty sure, this is a 30 60 90 triangle. so the sides are labled 2a, a, a$1.)2a$ $2.) a$ $3.) a \sqrt{3}$

3. anonymous

I believe the answer your looking for is D.) $9\sqrt{3}$

4. anonymous

|dw:1358875653750:dw|

5. anonymous

30-60-90 triangle, so: a is shortest side = 9 here 2a is hypothenuse = 18 here a*sqrt(3) is 3rd side = 9√3 here Hint: Do make a good drawing, with the proper angles (30, 60, 90). It helps identifying this is a special triangle!