## RS Aggarwal Class 6 Math Thirteenth Chapter Angels And Their Measurement Exercise 13D Solution

## EXERCISE 13D

### OBJECTIVE QUESTIONS

**Mark (√****) against the correct answer in each of the following:**

**(1) Where does the vertex of an angle lie?**

Ans: (c) On the angle

**(2) The figure formed by two rays with the same initial point is called**

Ans: (c) an angle

**(3) An angle measuring 180 ^{o} is called**

Ans: (c) Straight angle

**(4) An angle measuring 90 ^{o} is called**

Ans: (b) a right angle

**(5) An angle measuring 91 ^{o} is **

Ans: (b) an obtuse angle

**(6) An angle measuring 270 ^{o} is **

Ans: (d) a reflex angle

**(7) The measure of a straight angle is **

Ans: (c) 180^{o}

**(8) An angle measuring 200 ^{o} is**

Ans: (c) a reflex angle

**(9) An angle measuring 360 ^{o} is**

Ans: (d) a complete angle

**(10) A reflex angle measures**

Ans: (b) more than 180^{o} but less than 360^{o}

**(11) 2 right angles =?**

Ans: (b) 180^{o}

Ans: (b) 135^{o}

**(13) If there are 36 spokes in a bicycle wheel, then the angle between a pair of adjacent a pair of adjacent spokes is **

Ans: (c) 10^{o}