Special right triangle need help asap!

Mathematics

2 answers:

alukav5142 [94]3 years ago

6 0

Answer:

15√3.

Step-by-step explanation:

This is a 30-60-90 right triangle.

The sides are in the ratio 2:1:√3 where 2 is the hypotenuse, side of length 1 is opposite 30 degree angle and side √3 is opposite the 60 degree angle.

So as the side opposite the 30 degree angle = 15,

x = 15 * √3

= 15√3.

jolli1 [7]3 years ago

5 0

Answer:

15√2 (fourth answer choice)

Step-by-step explanation:

Note that the ratio 15/x is the tangent of 30 degrees, which in turn is 0.577 or 1/√2. Then:

1/√2 = 15/x, or

1 5

----- = ----- or x = 15√2

√2 x

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