Question

The angles of a triangle are in the ratio 1:3:5 . find the measure of each of the angles ​

Answer 1

Answer:

Given=》 Triangle are in the ratio 1:3:5

proof=》 Let first angle be 1x

second 3x

third5x

we know that ,

sum of all angles of a triangle is 180

so,

1x+3x+5x=180

9x=180

x=20

Hence, first angle = 20

second =3×20=60

third = 5×20=100

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Answer 2

Answer:

let the common angle be x

so,

x+3x+5x=180...............(sum of all angle of a triangle is 180)

9x=180

x=180/9

x=20

so

the 1st angle=20

2nd angle=3x=3×20=60

3rd angle=5x=5×20=100

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