# NCERT Mathematics Class 9 Exemplar Ch 11 Constructions Part 1

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**Exercise 11.1**

1. With the help of a ruler and a compass it is not possible to construct an angle of :

(A)

(B)

(C)

(D)

Answer: B

2. The construction of a triangle ABC, given that , is not possible when difference of AB and AC is equal to:

(A)

(B)

(C)

(D)

Answer: A

3. The construction of a triangle ABC, given that , is possible when difference of AB and AC is equal to :

(A)

(B)

(C)

(D)

Answer: D