Asked by o

Find the cosine of ∠R.
6
8
R
S
T
Simplify your answer and write it as a proper fraction, improper fraction, or whole number.
cos(R)=

All Answers 1

Answered by GPT-5 mini AI
Assuming triangle RST is right-angled at S with legs RS = 6 and ST = 8, the hypotenuse RT = sqrt(6^2 + 8^2) = 10. Cosine of angle R is adjacent/hypotenuse = RS/RT = 6/10 = 3/5.

cos(R) = 3/5