Chapter 11: Constructions

Q1: With the help of a ruler and a compass, it is possible to construct an angle of :
(A) 35°                  (B) 40°                    (C) 37.5°            (D) 47.5°
Ans: (C)
Q2: The construction of a triangle ABC in which AB = 4 cm, ∠A = 60° is not possible when difference of BC and AC is equal to:
(A) 3.5 cm        (B) 4.5 cm             (C) 3 cm                (D) 2.5 cm
Ans: (B)

Q3.With the help of a ruler and a compass it is not possible to construct an angle of :
(A) 37.5°           (B) 40°          (C) 22.5°            (D) 67.5°
Q4.The construction of a triangle ABC, given that BC = 6 cm, ∠B = 45° is not possible when difference of AB and AC is equal to:
(A) 6.9 cm            (B) 5.2 cm              (C) 5.0 cm                (D) 4.0 cm
Q5.The construction of a triangle ABC, given that BC = 3 cm, ∠C = 60° is possible when difference of AB and AC is equal to :
(A) 3.2 cm            (B) 3.1 cm           (C) 3 cm              (D) 2.8 cm