Question

In triangle abc ab=5cm ,ac=5cm and angle a =50degree then angle b= ?

Answer 1

Since, AB = AC = 5cm.It is an isosceles triangle.
Therefore, angleB = angleC (In an isosceles triangle the angles opposite to equal sides are also equal)
So, angleA+angleB+angleC = 180 (sum of all angles of a triangle is 180 degree)
50+angleB+angleB = 180° (angleA = angleB)
2angleB = (180-50)°
2angleB = 130°
angleB = (130/2)°
angleB = 65°

Answer 2

Answer:

65⁰

Step-by-step explanation:

65 degree

hope it helps