Download presentation

Presentation is loading. Please wait.

Published byJeremiah Weber Modified over 3 years ago

1
Starter Original2 x Original3 x Original 4 1 8 12 3 2 612 4 16 36 5 2 10 4 15 6 10 40 90

2
Enlargement Aim: To enlarge shapes from a given centre of enlargement and scale factor. We have our original photo. And we increase its size by a factor of two.

3
8 7 6 -254321 5 3 2 1 891067 0 4 Enlarge the green rectangle by a factor of 2 from the given centre of enlargement. Centre of enlargement First we measure the distance from centre of enlargement to each corner of shape. This measurement is 3 units. This measurement is 2 unit. This measurement now becomes 6 units. This measurement now becomes 4 units. Now we multiply our measurements by the scale factor..

4
Steps for enlargement: 1: Measure distance from centre of enlargement to corners of shape. 2: Multiply the distances by the scale factor. 3: Use these calculations to find the corners of the enlarged shape. 4: Join points to give the enlarged shape.

5
Centre of enlargement Enlarge the blue square by a factor of 2 from the given centre of enlargement.

6
Plenary B A How do we find the centre of enlargement for this pair of shapes? What is the scale of enlargement for this shape A to B? 18 units 6 units Draw lines joining the corners of the shape, and continuing till they cross. Divide the large measurement by the smaller measurement to give 18 ÷ 6 = 3 A A A

Similar presentations

Presentation is loading. Please wait....

OK

Surface Area and Volume

Surface Area and Volume

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on kingdom monera images Download ppt on tsunami Ppt on principles of peace building grants Ppt on review of literature introduction Ppt on obesity prevention activities Ppt on unity in diversity Ppt on internet addiction Ppt on networking related topics such Ppt on environment safety measures Ppt on contact and noncontact forces