In triangle ABC AB=BC if angle B=80degree then the measure of angle A is equal to what
Answers
Answered by
5
Answer:
The answer is 100
Step-by-step explanation:
A+B=180
A+80= 180
A=180-80
A=100 ANS
Answered by
6
Answer:
Step-by-step explanation:Since BC=AB,Triangle ABC is an isosceles triangle . Therfore angle a and c will be equal.
<a=<c=x
<a+<b+<c=180
x+80+x=180
2x=100
x=50
therefore angle a is 50 degrees .
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