two base angle of a triangle are 78 and 42 find the vertical Angle
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Answered by
3
Answer:
sum of all angle of triangle is 180
So third angle will be 180- (78+42)
=180-120
=60
Answered by
2
Answer:60
Step-by-step explanation:
The sum of all angles is 180degree.so to find the third angle when two angles are given : 180 - (78 +42)
That is 180 - 120 =60
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