Question

plz help me





maths
traingles​

Answer 1

Answer:

1st One:-

2x+x+90°=180°

=>3x=90°

=>x=30°

2nd One:-

x+x+90°=180°

=>2x=90°

=>x=45°

3rd One:-

x+50°+25°=180°

=>x+75°=180°

=>x=180°-75°

=>x=105°

Answer 2

Answer:

1) 30

because all interior angles makes 180⁰

so 30 + 2 × 30 + 90 =180

2)45

because all interior angles makes 180⁰

so 45 + 45 + 90 = 180

3)75

because all interior angles makes 180⁰

so 50 + 25 = 75

180 - 75 = 105

as BD so it's degree is 180⁰

and 105 + 75 = 180⁰