Answer:
m∠R = 22.62°
Explanation:
cos R= 12/13 = 0.92307
cos-1 (0.92307) = 22.6208962497961
= 22.62
sin R= 5/13 = 0.38461
sin-1(0.38461) = 22.6195307230661
= 22.62
tan R = 5/12 = 0.41666
tan-1(0.41666) = 22.6195394801202
= 22.62
Round only your final answer to the nearest hundredth
when you round all of them to there nearest hundredth you get
22.62°
Got it correct on the test