find the value of a in this diagram⬆️
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0
Answer:
80 because it is a straight angln
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1
Answer:
a = 140
Step-by-step explanation:
there are two opposite sides in this triangle which are equal
So, both the angles are also equal.
180 - 100 =80
Sum of both the angle is 180
so 80÷ 2 = 40
both angles are of 40 degrees
A is the exterior angle which is equal to the sum of two interior opposite angles
A = 100 + 40 = 140
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