Question

You will have thirty points if you answer this question One of the exterior angles of a triangle is 120 degree and the interior opposite angles of it are in the ratio of 4 : 2. find the angles of the triangle

Answer 1

$180 - 120 = 60 \\ 4x = 120 \\ x = \frac{120}{4} \\ x = 30 \\ the \: other \: exterior \: angle \: = 3x \\ 3 \times 30 = 90 \\ 180 - 90 = 90 \\ third \: angle = 180 - (60 + 90) \\ = 30 \\ first \: angle = 60 \\ second \: angle \: = 90 \\ tird \: anle = 30$

Answer 2

Step-by-step explanation:

4x+2x = 120

6x=120

x=20

4x=4×20=80

2x=2×20=40