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lidiya [134]
3 years ago
11

ZA and ZB are complementary angles. If m_A= (7x + 28)° and m

Mathematics
1 answer:
snow_lady [41]3 years ago
7 0

Answer:

mA=56 degrees

Step-by-step explanation:

Complementary angles adds up to 90 degrees. This imply that

(7x+28)+(8x+2)=90

From this equation, we can find x:

15x+30=90\\15x=90-30\\15x=60\\x=\frac{60}{15}\\x= 4

Now, we can substitute the value for x into the angle mA:

mA=(7*4+28)\\mA=(28+28)\\mA=56

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