Question

4. In the given figure, c is the transversal to parallel lines a and b. If 21 = 45°,
find the measures of Z2, 23, 24, 25, 26, 27 and 28.
1
7
5
87 6
Cì​

Answer 1

Answer:

The sum of the measures of complementary angles is 90º.

(i) 20°

Complement = 90° − 20°

= 70°

(ii) 63°

Complement = 90° − 63°

= 27°

(iii) 57°

Complement = 90° − 57°

= 33°

Answer 2

Answer:

a=45°

b=135°

Step-by-step explanation:

1 = 45° According to the Question

1 = 8 ( Because these are opposite to each other )

So,8 = 45° Also

And 4 and 7 is = 8

So, 4= 45°

and 8 = 45°

5 and 6 is = 135°

So,2 and 3 is = 135°

So,

The Answer: 2= 135°

3= 135°

4= 45°

5= 135°

6=135°

7=45°

8=45°

Answer: a= 45°

b= 135°