In right triangle RST, ST = 5, RT = 12, and RS = 13.
find cos R
(i'm not able to show a pic sorry!)
4/13
12/5
12/13
5/12
not sure where the finance comes in here, but
did you draw RST? If so, it should be clear that
cosR = adjacent/hypotenuse = RT/RS = 12/13
it's just a class name lol! i so appreciate you!
To find cos R in right triangle RST, you can use the cosine function which is defined as the ratio of the adjacent side to the hypotenuse. In this triangle, R is the angle adjacent to side ST, and RT is the adjacent side, while RS is the hypotenuse.
So, the correct answer is:
cos R = adjacent / hypotenuse
= RT / RS
= 12 / 13
Therefore, the answer is 12/13.
To find cos R in right triangle RST, we can use the cosine function, which is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.
In this case, RS is the hypotenuse, and RT is the adjacent side to angle R. So we can use the formula:
cos R = adjacent/hypotenuse = RT/RS
Given that RT = 12 and RS = 13, we can substitute these values into the formula:
cos R = 12/13
Therefore, the correct answer is 12/13.