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4 years ago

What is the m∠R? Round your answer to the nearest tenth. *

Mathematics

1 answer:

OLEGan [10]4 years ago

8 0

Answer:

D) 67.4°

Step-by-step explanation:

by observation, and noting that triangle PQR is a right triangle

sin R = opposite length / hypotenuse

in our case, the hypotenuse is PR = 13 and the length opposite form R is QP = 12

hence

sin R = opposite length / hypotenuse

sin R = 12/13

R = sin⁻¹ (12/13) = 67.4⁰

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