Question

Hi guys, a very good morning to all the brainies can you please help me out in solving the questions of try these of chapter 6 the triangle and it's properties class 7 ​

Answer 1

Answer:

1.70

2.50

3.45,90,45

Step-by-step explanation:

1.using angle sum property of a triangle,

let the unknown angle be x

30+80+x=180

110+x=180

x=70

2.given 1 angle is 80 and other 2 are equal

using asp,

let the unknown angles be x

therefore, x+x+80=180

2x=100

x=50

3. x+2x+x=180(asp)

4x=180

x=45

therefore two angles are 45 and one angle is 90

Answer 2

Answer:

1st answer 70°

30°+80°+x=180°

110°+x=180°

x=70°

Step-by-step explanation:

2nd answer is 50°

let angles be x( which are equal)

80°+x+x=180°

2x=100°

x=50°

3 question-

ratio is1:2:1

angles are x,2x,x

x+2x+x=180°

4x=180°

x=45°

1st angle is 45

2nd angle is 90(2x)

3rd angle is 45