How would you solve this?
2 answers:
Answer:
Add all sides together, then divide it by 3. The answer is...
Step-by-step explanation:
54+80+64= 198 DIVIDED BY 3 = 66 so
66 = X
Answer:
x = -9
m∠A = 45°
Step-by-step explanation:
The interior angles of a triangle always add up to 180°, therefore:
Combine like terms.
Subtract 198 from both sides, then divide both sides by 2.
Solve for m∠A.
Plug in -9 for x.
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