Let's hear what Paul and Pauline say... Do you agree with them?

Ponder over what they said. We'll discuss this in the next lesson.

## Thursday, July 27, 2017

### Geometrical Construction (1) Spot the Errors

Instructions:

1. Watch the clips and spot as many errors as possible.

2. Describe the error in "Comments" (e.g. What is wrong with the way the person did the construction? What should he do instead.)

Complete the task by

TASK 1

Watch the clip and try to spot as many errors as possible.

TASK 2

Watch the clip and try to spot as many errors as possible.

1. Watch the clips and spot as many errors as possible.

2. Describe the error in "Comments" (e.g. What is wrong with the way the person did the construction? What should he do instead.)

Complete the task by

**Saturday (29 July 2017), 10 pm**so that we can review your work and discuss in the next lesson.TASK 1

Watch the clip and try to spot as many errors as possible.

TASK 2

Watch the clip and try to spot as many errors as possible.

### Geometrical Construction (2) Little Red Riding Hood needs help!

Task to be completed by next

Shortest distance between Grandma's house (G) and her house (H) is 10 km.

Draw a straight line on a plain paper with the scale, 1 cm to represent 1 km.

From there, construct the suggested path.

Take a photo of the constructed diagram and post it in the padlet below:

Direct LINK to the padlet.

**Saturday (29 July 2017, 10 pm).**__Additional Information__:Shortest distance between Grandma's house (G) and her house (H) is 10 km.

Draw a straight line on a plain paper with the scale, 1 cm to represent 1 km.

From there, construct the suggested path.

Take a photo of the constructed diagram and post it in the padlet below:

Direct LINK to the padlet.

### Geometrical Construction (3) Where Shall We Meet?

Task to be completed by next

The location of the houses of three friends, Antonio, Benedict and Celine happened to form an

Your Task:

Assume that each house is 8 km from the two other houses.

(i.e. the length of the equilateral triangle is 8 km).

Taking the scale, 1 cm to represent 1 km, construct the equilateral triangle on a sheet of paper.

On this diagram, construct the relevant "some lines" to help you find the centre meeting point.

Take a photo of your diagram (make sure it is clearly labelled) and post it in the padlet.

Direct LINK to access the padlet.

**Saturday (29 July 2017, 10 pm).**The location of the houses of three friends, Antonio, Benedict and Celine happened to form an

**equilateral triangle**. They meet quite often to catch up with each other; however, none of them want to invite their friends home.**To be fair, they decided to meet at a place that is most 'central' to all.****Point to ponder...**

- What would you suggest?
- How would you do it if you have their houses marked on a map already?

*Note: There is a typo-error in the above diagram, it should be "Benedict"*Your Task:

Assume that each house is 8 km from the two other houses.

(i.e. the length of the equilateral triangle is 8 km).

Taking the scale, 1 cm to represent 1 km, construct the equilateral triangle on a sheet of paper.

On this diagram, construct the relevant "some lines" to help you find the centre meeting point.

*Hint:*Perpendicular Bisectors, Angle BisectorsTake a photo of your diagram (make sure it is clearly labelled) and post it in the padlet.

Direct LINK to access the padlet.

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