Questions

1 Mark Question

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
As seen above, ∆ABC has three sides. Line segment AB is one side. Write the names of the other two sides. ∆ABC has three angles. ∠ABC is one among them. Write the names of the other angles.
Answer
The names of other two sides are: seg BC and seg AC
The names of other angles are: ∠BCA and ∠CAB
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Question 21 Mark
In the given figure, some points and some line segments joining them have been drawn. Which of these figures is a triangle? Which figure is not a triangle? Why not?

Image

Answer
ABC it is a closed figure with three sides. Hence, ABC is a triangle.
PQRS has three sides but it is not a closed figure. Hence, PQRS is not a triangle.
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