inΔABC A-B=63 B-C=18 find B
Anonymous:
are this angles
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Answers
Answered by
8
Angle A = Angle B+63, Angle C = Angle B - 18
Angle A +Angle B + Angle C = 180
==> (angle B+63) + angle B + (angle B - 18) = 180
OR 3 x angle B = 180 - 63 + 18 = 135
OR angle B = 135 / 3 = 45
Angle A +Angle B + Angle C = 180
==> (angle B+63) + angle B + (angle B - 18) = 180
OR 3 x angle B = 180 - 63 + 18 = 135
OR angle B = 135 / 3 = 45
Answered by
11
Angle A = Angle B+63, Angle C = Angle B - 18
Angle A +Angle B + Angle C = 180
(Angle B+63) + Angle B + (Angle B - 18) = 180
3 × Angle B = 180 - 63 + 18 = 135
Angle B = 135 / 3
Angle B = 45
Angle A +Angle B + Angle C = 180
(Angle B+63) + Angle B + (Angle B - 18) = 180
3 × Angle B = 180 - 63 + 18 = 135
Angle B = 135 / 3
Angle B = 45
I hope it will help you.
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