In a right triangle STR, angle T and R are complementary angles. The value of cos (T) is 9/41. What is the value of sin (R) ?

A) 9/40

B) 40/41

C) 9/41

D) 40/9

Question

Kaylie Clarke

Mathematics

21 July, 21:23

In a right triangle STR, angle T and R are complementary angles. The value of cos (T) is 9/41. What is the value of sin (R) ?

A) 9/40

B) 40/41

C) 9/41

D) 40/9

+2

Answers (1)

Know the Answer?

Rowan Hickman · Answer 1

Answer: C) 9/41

Step-by-step explanation: From the description, angle S is the right angle. Which means that angles T and R are complementary (they sum to 90 degrees). Because they are complementary, this means the cosine of one angle is equal to the sine of the other angle. If cos (T) is 9/41, then so is sin (R).

cr. USA Test Prep

In a right triangle STR, angle T and R are complementary angles. The value of cos (T) is 9/41. What is the value of sin (R) ?A) 9/40B) 40/41C) 9/41D) 40/9

In a right triangle STR, angle T and R are complementary angles. The value of cos (T) is 9/41. What is the value of sin (R) ?

A) 9/40

B) 40/41

C) 9/41

D) 40/9