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An exterior angle of a triangle is 800 and the interior opposite angles are in the ratio 1 : 3. Measure of each interior opposite angle is :
  • a)
    300, 600
  • b)
    400, 1200
  • c)
    300, 900
  • d)
    200, 600
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
An exterior angle of a triangle is800 and the interior opposite angles...
X+3x=80(exterior angle of triangle is equal to two interior opposite angles) 4x=80 x=80/4 x=20 So, x=20 and 3x=3*20=60 are two opposite interior angles.
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An exterior angle of a triangle is800 and the interior opposite angles are in the ratio 1 : 3. Measure of each interior opposite angle is :a)300, 600b)400, 1200c)300, 900d)200, 600Correct answer is option 'D'. Can you explain this answer?
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