In an isosceles triangle, A ABC, AB = AC and B = 40°, then angle A is
d) 50°
c) 900
b) 100°
a) 60°
Answers
Answered by
2
Answer:
d)50 is the correct answer
Answered by
1
Answer:
b) 100
Step-by-step explanation:
given,
ABC is an isosceles triangle
AB = AC
B = 40°
•°• C = 40° (°•° ISOSCELES PROPERTY)
In ABC,
A + B + C = 180°
A + 40° + 40° = 180°
A + 80° = 180°
A = 180° - 80°
A = 100°
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