Question

27. If the angles of a triangle are
in the ratio 1:4:5. Find the
angles​

Answer 1

Answer:

let the angles be 1x,4x,5x

according to angle sum property sum of angles is 180

1x+4x+5x=180

10x=180

x=18

4x=4×18=72

5x=5×18=90

Step-by-step explanation:

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Answer 2

Answer:

18° , 72° , 90°

Step-by-step explanation:

let the sides be x°

1st side be X°

2nd side be 4x°

3rd side be 5x°

now,

X° + 4x° + 5x° = 180° ( angle sum property)

10x° = 180°

X = 180/10

X = 18°

then,

1st side = X

= 18°

2nd side = 4x

= 4 X 18 = 72°

3rd side = 5x

= 5 X 18 = 90°