NEED HELP ASAP!!!!! PLEASE HELP ME
2 answers:
Answer:
m∠A = 40°
m∠B = 70°
Step-by-step explanation:
The sum of angles in a triangle is 180°.
x + 49 + x + 79 + 70 = 180
2x + 198 = 180
2x = 180 - 198
= -18
x = -18 ÷ 2
x = -9
m∠A = x + 49
= (-9) + 49
m∠A = 40°
m∠B = x + 79
= (-9) + 79
m∠B = 70°
ANSWER
X = -9
EXPLANATION: you subtract 180 - 70 giving you 110
Equation set up: x + 49 + x + 79 = 110
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