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Write down the answers next to the right numbers.

Assignment 9:

Drawing a figure

[lo 1.2]

Answer the following questions by writing down only the name of the correct geometric figure.

  1. Which figure has four right angles each?
  2. Which figure’s four sides are of equal length?
  3. Which figure has two pairs of equal sides?
  4. Which figures’ opposite sides are parallel?
  5. Which figure has three acute angles?
  6. Which figure has no angles?
  7. Calculate the CIRCUMFERENCE of each figure in mm




(iv) (Hint: Use a length of wool.)

h. Use your pencil and a square grid (p. 15) and draw:

  1. a square with a circumference of 160 mm;
  2. a square of which each of the sides is 50 mm;
  3. a rectangle of which the length is 30 mm and the breadth is 50 mm;
  4. a triangle of which one side is 40 mm and two sides are 30 mm each;
  5. a circle (without the grid).

(HINT: Here you may use any aid, or you may use a pair of COMPASSES.)


What is a pair of compasses?

The following parts of a circle are important: the centre, the radius and the diameter.

If you know the length or the radius or diameter of a circle, it is easy to draw a circle

with a set of compasses.

Assignment 10:

Draw circles with a set of compasses

[lo 1.8]

a. A circle with a diameter of 100 mm

b. A circle with a radius of 30 mm


A set of compasses is not a toy and it could be dangerous if you don’t handle it with care.

Assignment 11:

Using a ruler and a pencil, re-draw the top design on squared paper

[lo 1.7]

Assignment 12:


[lo 1.8]

Try to re-draw the sketch in Assignment 11 on a clean page.

NB: All drawings must be done in pencil.

SELF-assessment of measuring and drawing with measuring-instruments

S elf-assessment

  1. The learner’s performance does not meet the requirement of the LO.
  2. The learner’s performance partially meets the requirement of the LO.
  3. The learner’s performance meets the requirement of the LO.
  4. The learner’s performance exceeds the requirement of the LO.

Assignment 13:

When you receive a copy of the assignment grid, make a tick under the appropriate number

1 2 3 4
1. I am able to measure the lengths of line sections with a ruler.
2. I am able to recognise a horizontal line.
3. I am able to recognise a vertical line.
4. I am able to recognise a diagonal line.
5. I am able to recognise a curved line.
6. I am able to draw a horizontal line with a ruler.
7. I am able to draw a vertical line with a ruler.
8. I am able to recognise parallel lines.
9. I am able to recognise a right angle.
10. I am able to draw a right angle with a ruler.
11. I am able to recognise an acute angle.
12. I am able to draw an acute angle with a ruler.
13. I am able to recognise an obtuse angle.
14. I am able to draw an obtuse angle with a ruler.
15. I know what a geometrical figure is.
16. I am able to recognise a square.
17. I am able to draw a square with a ruler.
18. I am able to recognise a rectangle.
19. I am able to draw a rectangle with a ruler.
20. I am able to recognise a triangle.
21. I am able to draw a triangle with a ruler.
22. I am able to draw a circle with a set of compasses.
23. I am able to draw a circle without a set of compasses, but with a ruler.
24. I am able to re-draw a two-dimensional design on squared paper with a ruler and set of compasses.
25. I am able to re-draw a two-dimensional design from a squared page onto a clean page with a ruler and a set of compasses.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
Nasa has use it in the 60's, copper as water purification in the moon travel.
nanocopper obvius
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
analytical skills graphene is prepared to kill any type viruses .
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
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Source:  OpenStax, Technology grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10979/1.2
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