Question

in a triangle two angles are in ratio 5:8 and the third angle is is 120 degree find the other two angles​

Answer 1

Step-by-step explanation:

Sum of angles of a triangle- 180°

Given, third angle is 120°.

Therefore, 5x + 8x + 60 = 180 (Angle sum property)

13x + 120 = 180

13x = 60

x = 60/13

Answer 2

Answer:

23.1°, 36.9°

Step-by-step explanation:

let the ratios as 5x,8x

and we know the third angle which is 120

also , we know that sum of all angels in triangle is 180 so.

5x+8x+120=180

5x+8x=60

13x=60

x=60/13

so the angles are

5(60/13), 8(60/13)

23.1, 36.9

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