Question

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Triangle R S T is shown. Angle T R S is a right angle. The length of R T is 5, the length of R S is 12, and the length of hypotenuse S T is 13.

Given right triangle RST, what is the value of sin(S)?
Five-thirteenths
Five-twelfths
Twelve-thirteenths
Thirteen-twelfths

Answer 1

22.6 = 113/5

Explanation:

Answer 2

Explanation:

I would use the law of sins.

13/sin90 = 5/sin s

sin s = (5 sin 90)/13

sin s = .3846.

Now put in your calculator sin-1 .3846 and you will get the angle of 22.6 degrees rounded to the tenths place.