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What is the measure of ∠R?
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2 votes
What is the measure of ∠R?

What is the measure of ∠R?-example-1
User Dominic Dabrowiecki
by
8.2k points

1 Answer

4 votes

Answer:

∠ R ≈ 36.9°

Explanation:

Using the cosine ratio in the right triangle

cos R =
(adjacent)/(hypotenuse) =
(RT)/(RS) =
(8)/(10) , thus

∠ R =
cos^(-1) (
(8)/(10) ) ≈ 36.9° ( to 1 dec. place )

User JeroenVdb
by
8.1k points
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