Question

Find Angle BAC from this figure

Answer 1

Answer:

angle BAC =40°

from exterior angle property...

angle ABC + angle BAC = 130°

Answer 2

Angle BAC is 40 degree

We can find the angle ACB by 180-130 ( Linear Pair)

Angle ABC + Angle ACB + Angle CAB = 180 degree (ASP)

90+50+ Angle ACB =180 degree

So Angle ACB is 40 degree


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