Question

Two angles of a triangle are equal and the third angle is greater than each one of them by 18 .find the angle

Answer 1

Let us assume, third angle of a triangle is y and two angle of a triangle are a and b respectivelly,
 Teo angles are equal. Therefore a = b = x
Condition: Sum of three angles = 180
Given:
y = x + 18 ----------1
To satisfy thr condition of a triangle
x + x + y = 180
2x + x + 18 = 180
3x = 162
x = 54
and therefore, y = x + 18 = 54 + 18 = 72
Therefore, three angles of a triangle are 54, 54, 72.

Answer 2

Answer:

Step-by-step explanation:

let the equal angles of triangle be x

Therefore,the third angle ATQ will be x+18

x+x+(x+18)=180 (angle sum property of triangle)

3x+18=180

3x=180-18

3x=162

x=162/3

x=54

so Angles in the triangle would be

54,54,

x+18 or 72