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