Question

10, The three angles of a triangle are in the ratio 1:2:3. Find the angles.
4. The angles of a triangle are in the ratio 3:4:5. Find the angles.
Sum of Two Sides of a Triangle



NEED STEP BY STEP EXPLANATION ​

Answer 1

Answer:

In first angle angle measure is 30°,60°,90°,

Step-by-step explanation:

For first triangle

let measure of the angle be a x°

=1x+2x+3x= 180°

=6x=180

=x =180/6

=30°

1×30=30°

2×30=60°

3×30=90°

For second triangle

let measure of the angle be y°

3x+4x+5x=180°

12x=180°

x=180/12

x=15°

3× 15=45°

4×15=60°

5×15=75°