Question

What are the following angles

Answer 1

Answer:

1.a+b=180

2.a+b=90

3.a+b=180

4.142+b=180

Step-by-step explanation:

1.it is a straight angle

2.it forms a right angle

3. they are alternate interior angles

4.angle sum property is used

Answer 2

Answer:

Step-by-step explanation:1) a+b=180(linear pair)

so, a and b = 180/2 = 60

2} a= 90

b=90/2=45

3)a=b( vertically opposite angles)

4) angle b= 142 -180(linear pair)

so, b=38

5) b=90 ( vertically opposite angles)