Question

triangle ABC is an isosceles triangle in which a b is equal to BC. is Angle B is twice the measure of angle find the measure of all angles of the triangle.

solve on notebook ​

Answer 1

Answer:

Angel A = 45°

Angel B = 90°

Angel C = 45°

Step-by-step explanation:

According to the question

AB=BC

let angel A= angel C

Given that

angel B= 2, angel A= 2x

Angel sum property of a triangle

x + x + 2x = 180°

4x = 180°

x = 180°/4

x = 45°

angel A = angel C = x = 45°

angel B = 2 × 45° = 90°

Answer 2

Answer:

A=45° B=90° C=45°

Step-by-step explanation:

AB = BC

=> angleA = angle C

let angle A and angle C be X

angle B = 2X

angle (A+B+C)=180°

X+2X+X = 180°

2X+2X= 180°

4X=180°

X=45