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Vikentia [17]
3 years ago
10

What is the measure of angle A in the triangle?

Mathematics
1 answer:
levacccp [35]3 years ago
5 0
The measure of angle A is 50 degrees.
2x-10+x+30+70=180
3x+90=180
    -90   -90
3x=90
x=30

2(30)-10
60-10
50
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