S.chand class 6 Mathematics Chapter 17 Exercise 17A

 Exercise 17A

Question 1

1. Give any three examples of angles from your environment.

2. Name the following angles in three different ways.

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3. The given figure shows $A C$ is a line. Are $B A, B C$ and $B D$ rays? There are three angles in the figure. One is $\angle A B C$. What are the others?

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4. Fig. Q.4, shows two intersecting lines $P Q$ and $R S$.

(i) Could you think of the figure as being formed by four rays with a common end point?

(ii) Name at least six angles that are formed by the rays.

5. Name the six angles in the Fig. Q.5 that have $O$ as a vertex.

6. In given Fig. Q.6, list the points which are

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(i) in the interior of $\angle O$

(ii) in the exterior of $\angle 0$

(iii) lying on $\angle O$.