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2 years ago

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Mathematics

2 answers:

dmitriy555 [2]2 years ago

5 0

63 + a = 90; subtract 63 from both sides of the equation.

Taya2010 [7]2 years ago

4 0

Answer:

Option B, 63 + a = 90; subtract 63 from both sides of the equation

Step-by-step explanation:

When the sum of two angles is equal to 90 degrees, they are called complementary angles.

Here, we know the one angle measure is 63°

Let's consider unknown angle as a.

63 °+ a = 90°

63 °+ a -63° = 90° - 63° ( subtract 63 from both sides of the equation)

a = 90° - 63°

a = 27°

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Answer:

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Step-by-step explanation:

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Answer:

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