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ZA and ZB are supplementary angles. If mA = (2x − 9)º and m ZB = (2x +21)°, then find the measure of ZA.
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ZA and ZB are supplementary angles. If mA = (2x − 9)º and m

ZB = (2x +21)°, then find the measure of ZA.

ZA and ZB are supplementary angles. If mA = (2x − 9)º and m ZB = (2x +21)°, then find-example-1
User NawK
by
7.6k points

1 Answer

3 votes

angle A = 30

(2x-9) = (2x+21)
+9 +9
2x=2x+30

-2x -2x

=30

User Kameka
by
7.4k points
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