3 years ago

What is the measure of ∠R?

Mathematics

2 answers:

masya89 [10]3 years ago

7 0

Answer:

Answers and Steps are in Pictures.

lesya [120]3 years ago

6 0

Answer:

∠ R ≈ 36.9

Step-by-step explanation:

Using the cosine ratio in the right triangle

cosR = $\frac{adjacent}{hypotenuse}$ = $\frac{RT}{RS}$ = $\frac{8}{10}$ , then

∠ R = $cos^{-1}$ ( $\frac{8}{10}$ ) ≈ 36.9 (to 1 dec. place )

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