if (a-27)and (2a+15) are complementry then find a
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Answered by
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Answer:
(a-27) + 2a+15 = 90
a - 27 + 2a + 15 = 90
3a - 12 = 90
3a = 90+12
3a = 102
a = 102/3
a = 34
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Answered by
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Answer:
two angles are complementry when their additions is 90°
(a-27)+(2a+15)=90°
a-27+2a+15=90°
3a-12=90°
3a=90+12
3a=102
a=102÷3
a=34
therefore, a= 34
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