One angle of a triangle is 2 more than thrice the other angle. If the third angle is 38", find the angles of the triangle
One angle of a triangle is 2 more than thrice the other angle. If the third angle is 38", find the angles of the triangle
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Step-by-step explanation:
one angle = 3x+2
second angle = X
third angle = 38
( sum of angles of triangles is 180°)
3x+2+X+38 = 180°
= 4x+ 40 = 180°
= 4x= 180° - 40
= 4x= 140
= X = 140/4
therefore , X= 35
second angle is 35°
first angle is 3(35+2)
= 107
hence, first angle is 107
third angle is 38
proof : 35+107+38
= 180°
hope it helpful