Respuesta :

Answer:

Sin = PQ / PR = OPPOSITE / HYPOTENUSE

Step-by-step explanation:

Please find the attached file for a clearer understanding.

SOHCAHTOA

Sin = opposite / Hypotenuse

Cos = Adjacent / Hypotenuse

Tan = opposite / Adjacent

Math is fun

Ver imagen lordsonmyk

Answer:

R, R=27.8°

Step-by-step explanation:

21/45 = PQ/PR

Sin R = 21/45

R = 27.81814928