Question

Q.17
The angles of a triangle
are in the ratio
1:4:5 Determine the angles​

Answer 1

Answer:

Let angles be X:4x:5x

Sum of angle of triangle=180°

X+4x+5x=180°

10x=180°

X=180°/10

X=18°

1st angle =X=18°

2nd angle =4x=4×18=72°

3rd angle=5x=90°

Answer 2

Answer:

1x=18⁰ ,4x=72⁰ ,5x=90⁰

Step-by-step explanation:

let 1x ,4x and 5x be the ratio .

we know that sum all angles of a triangle is 180⁰.