Seudónimo Seudónimo
  • 21-03-2017
  • Mathematics
contestada

Angle A and Angle B are complementary. Measure angle A = 2x and measure angle B = 4x + 30°. What is the measure of the angle supplementary to angle A?

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Аноним Аноним
  • 22-03-2017
2x+4x+30=90
6x+30=90
    -30   -30
6x=60
/6   /6
x=10
A=2*10
A=20
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