Question

3.
Find x, if the angles of a triangle are :
(i) x°, x°, x°
(ii) x°, 2x°, 2x
(iii) 2x, 4xº, 6x​

Answer 1

3

(i) x + x + x = 180

3x = 180

x = 180/3

x = 60 °

(ii) x + 2x + 6x = 180

9x = 180

x = 180/9

x = 20

(iii) 2x + 4x + 6x = 180

12x = 180

x = 180/12

x = 15