Question

One side of a triangle is produced and the exterior angle so formed is 140: if the corresponding interior opposite angle are in the ratio 3:4 find the measure of all the angle of the triangle.
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Answer 1

Step-by-step explanation:

Answer

6

3.0

Let interior opposite angles be = 3x, 4x

3x + 4x = 140 x = 20

7x = 140

Angles 3x = 60

4x = 80

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