Question

find the sizes of unknown angles of the given triangle​

Answer 1

a° = 55° (as it is an Isosceles Triangle)

180-(55+55) = Angle A

180- 110° = 70 °

Answer 2

Step-by-step explanation:

It is given that AB=AC.

so,angleB=AngleC

therefore angleB =55degree

by angle sum property,

angleA+angleB+angleC=180degree

angleA+55+55=180

angleA=180-110

angleA=70degree.

hope it helps..