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13-04-2020
Mathematics

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Za and Zb are complementary angles. Za measures 78º.
What is the measure of Zb?

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13-04-2020

Answer:

12

Step-by-step explanation:

complementary angles sum up to 90 degrees

Za = 78

Za + Zb = 90

Zb = 90 - Za

Zb = 90 - 78

Zb = 12

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