Exercise 21B
Question 1
Which of the following closed plane figures are not polygons?
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Question 2
Which of the following figures are not polygons, and why? Give reasons.
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Question 3
For each polygon:
- write down the number of sides.
- name the polygon.
The first shape has 3 sides. It is a triangle.
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Multiple Choice Questions (MCQs)
Tick (✔) the correct option.
4. Which of the following is a regular polygon?
(a) Isosceles triangle
(b) Rectangle
(c) Rhombus
(d) Equilateral triangle
5.Name the polygon that best describes the given traffic sign 'STOP'
(a) pentagon
(c) octagon
(d) nonagon
6. Which of the following statements is sometimes false for a polygon?
(a) A polygon is a closed figure.
(c) Each side of a polygon intersects exactly (b) A polygon is made up of straight lines.
(d) A plane figure is a polygon.
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