How do you find the measure of the supplement of ∠R where m∠R=(8x+10)∘?

1 Answer
Jim G.
Feb 22, 2018

(170−8x)∘

Explanation:

supplementary angles sum to 180∘

to find the supplement of a given angle subtract it from
180∘

⇒supplement of ∠R is

180−(8x+10)

=180−8x−10

=(170−8x)∘

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