Question

(1) The three angles of a triangle are in the ratio 1:2:1
Find the measure of all the angles of the triangle.​

Answer 1

Step-by-step explanation:

Let the first angle be x, second be 2x and third be x.

x+2x+x = 180° (Angle Sum Property)

4x = 180°

x = 45°

so, First angle = 45°

Second angle = 90°

Third angle = 45°

Answer 2

Answer:

1x+2x+3x=180

4x=180

x=180/4

x=45

1x=1×45=45

2x=2×45=90

3x=3×45=135

so,first angle=45

Second 90

third 45