HELP ASAP The measure of ∠DAB equals 110º. The measure of ∠ACB equals 20º.

What is m∠ABC?

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∠ABC=90°

Step-by-step explanation:

if ∠DAB =110 then ∠BAC =180-110 =70° because straighht lines make 180°∠s

use the fact that the sum of angles in a Δ is 180°

∠ABC= 180-20-70= 90

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

the correct answer to your question is a. 4^4

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