3 years ago

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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