**New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 7 Pairs and Angles Self Practice 9B Solution**

**(1) Name the pair of angles marked as A for alternate, B for corresponding and C for co-interior.**

**Solution: **

(a) A

(b) B

(c) C

(d) A

(e) C

(f) B

(g) B

(h) A

**(2) Give examples of each angle pair.**

**(a) corresponding angles**

**Ans. **<1 and <3, <2 and <4, <5 and <7, <6 and <8

**(b) alternate angles**

**Ans. **<2 and <7, <6 and <3

**(c) co-interior angles**

**Ans. **<2 and <3, <6 and <7

**(d) vertically opposite angles.**

**Ans. **<1 and <6, <2 and <5, <3 and <8, <4 and <7

**(3) Name the type of angle pair shown in each letter.**

**Solution. **(a) Corresponding <S

(b) Alternate <S

(c) Co interior <S