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1. Join the correct answer in column B with the definition in column A:
| A | B | |
| The shortest possible line | Ray | |
| Has no beginning or end point | Plane | |
| Has a beginning point but stretches out indefinitely | Point | |
| Has length and breadth but no height | Straight line |
(4)
2. Name the following angles.
a)
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..................................................
c)
..................................................
(3)
3. An aeroplane flies for 400 km in the direction of 040 degrees. It then changes direction and flies a further 300 km in the direction of 125 degrees. Draw the aeroplane’s route. 1 cm = 100 km.
(2)
4. True or false?
a) This polygon is convex.____________________________________________
b) At least one of the inner angles of a concave polygon is a reflex angle. _______________________________________________________________
c) A triangle is rigid.________________________________________________
d) An irregular polygon’s sides are all equally long.________________________
(4)
5. Calculate the size of each corner of a regular heptagon by using the formula you learnt.
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(4)
6. Measure the following angles with your protractor.
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(2)
7. What kind of triangles are each of the following?
a) ..................................................
b) ..................................................
c) ..................................................
3)
8. A figure is symmetrical if
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_____________________________________________________________________
_____________________________________________________________________
(1)
9. Draw a polygon with four axes of symmetry. Show each axis with a broken line.
(3)
10. Use broken lines and show how you would make a pentagon sturdy.
(1)
11. Draw any figure that tessellates in the block below.
(1)
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