Question

in a triangle abc ab = 5 cm ,ac= 5cm, and angle b is angle a = 50degree then ​

Answer 1

Answer:

since, AB=AC =5cm. it is an isosceles triangle

therefore , angle B=angleC(In an isosceles triangle the angle apposite to equal sides are also equal)

so,angleA+angleB+angleC=180(sum of all angles of a triangle is 180 degree)

50+angleB+=180°(angleA=angle B)

2angle B =(180-50)°

2angleB=130°

angleB=(130/2)°

angle B= 65°