Question

maths class 9 please answer the ​

Answer 1

Answer:

1)in figure 3,

Step-by-step explanation:

given,

a:b=2:3

let a=2x

b=3x,where x is some number

Now,

angle POX+angle POY=180° (linear pair)

a+b+90°=180°

a+b=180°-90°

2x + 3x=90°

5x=90°

x=90°/5

×=18°

a=2x=2×18°

=36°

b=3x=3×18°

=54°

Now,

angle MOX+ angle XON=180°( linear pair)

b+c=180°

54°+c=180°

c=180°-54°

c=126°

Answer 2

this is a good question and answer is XCN,=120°