## Chapter 4 Basic Geometrical Ideas Exercise 4.3

Question 1: Name the angles in the given figure.

Answer:

∠ABC

∠BCD

∠CDA

∠DAB

Question 2: In the given diagram, name the point(s)

a) In the interior of ∠DOE

b) In the exterior of ∠EOF

c) On ∠EOF

Answer:

a) A

b) A, C, D

c) B, E, O, F

Question 3: Draw rough diagrams of two angles such that they have

a) One point in common.

b) Two points in common.

c) Three points in common.

d) Four points in common.

e) One ray in common.

Answer:

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