khilty05
khilty05 khilty05
  • 25-06-2020
  • Mathematics
contestada

What is the measure of ∠R?

What is the measure of R class=

Respuesta :

jimrgrant1 jimrgrant1
  • 25-06-2020

Answer:

∠ R ≈ 36.9°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos R = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{RT}{RS}[/tex] = [tex]\frac{8}{10}[/tex] , thus

∠ R = [tex]cos^{-1}[/tex] ([tex]\frac{8}{10}[/tex] ) ≈ 36.9° ( to 1 dec. place )

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