Question

One of the exterior angles of a triangle is 80°, and the interior opposite angles are in the ratio 3:5. Find the angles
of the triangle.​

Answer 1

Answer:

30, 50, 100.

80=3x+5x

x=10

3x=30

5x=50

LAST 100

SO ANS IS 30, 50, 100

Answer 2

Answer:

Exterior angle question

Step-by-step explanation:

let the interior angles of the triangle be 3x and 5x respectively

so , A.T.Q.

3x + 5x = 80°(exterior angle is equal to the sum of opposite interior angles)

8x=80°

x = 80/8

x= 10°

so the angles are,

1st angle = 3x = 3*10=30°

2nd angle = 5x = 5*10=50°

3rd angle = 180° -(30°+50°)=180°-80°=100°(according to angle sum property of triangle)

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