In a ΔABC, AB = BC, ∠B = x° and ∠A = (2x - 20)°, Then ∠B is :
A. 54°
B. 30°
C. 40°
D. 44°
Answer: Option D
Solution(By Examveda Team)
According to question,Given :
AB = AC
∠C = ∠A = 2x - 20°
∠B = x°
As we know that
∠A + ∠B + ∠C = 180°
(2x - 20)° + x + (2x - 20)° = 180°
5x = 220°
x = 44°
∴ ∠B = 44°
Related Questions on Triangles
If ABC and PQR are similar triangles in which ∠A = 47° and ∠Q = 83°, then ∠C is:
A. 50°
B. 70°
C. 60°
D. 80°
In the following figure which of the following statements is true?
A. AB = BD
B. AC = CD
C. BC + CD
D. AD < Cd
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