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  • GETSenPhaseMaths display tagshide tags

    This module is included inLens: Siyavula: Mathematics (Gr. 7-9)
    By: Siyavula

    Review Status: In Review

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MODULE TEST

Module by: Siyavula Uploaders. E-mail the author

MODULE TEST

1. Join the correct answer in column B with the definition in column A:

Table 1
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)

Figure 1
Figure 1 (graphics1.png)

..................................................

Figure 2
Figure 2 (graphics2.png)
b)

..................................................

c)

Figure 3
Figure 3 (graphics3.png)

..................................................

(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.________________________

Figure 4
Figure 4 (graphics4.png)

(4)

5. Calculate the size of each corner of a regular heptagon by using the formula you learnt.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(4)

6. Measure the following angles with your protractor.

Figure 5
Figure 5 (graphics5.png)
a)

..................................................

Figure 6
Figure 6 (graphics6.png)
b)

..................................................

(2)

7. What kind of triangles are each of the following?

Figure 7
Figure 7 (graphics7.png)

a) ..................................................

b) ..................................................

Figure 8
Figure 8 (graphics8.png)

c) ..................................................

3)

8. A figure is symmetrical if

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(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)

30

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Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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