Question

in triangle abc if ab is equal to BC and Angle A is equal to 50 degree then angle b is equal to (a) 50 (b) 130 (c) 25 (d) 80​

Answer 1

Answer:

(d) 80

Step-by-step explanation:

By isosceles triangle theorem,

angle c = 50

By angle sum property,

A + B + C = 180

100 + B= 180

B= 80

Answer 2

Answer:(d)80

Step-by-step explanation:

Given that

AB=BC

Hence it is an isosceles

triangle.

A=C

A=50=C

A+B+C=180

50+B+50 = 180

100+B = 180

B= 180-100

B= 80