We began Chapter 7 today in the text book. Students worked in class today on the following and should have complete:
9I - vocabulary and assignment 1
9C - vocabulary
Vocabulary:
Write the following words in your vocabulary section of your notebook.
Then, use your text book (pages 314 to 322) to write out the definition.
Some definitions you will have to sketch.
hatch marks corresponding lengths
scale factor proportional
similar polygons corresponding angles
corresponding sides
rotational symmetry order of rotation
angle of rotation AB = AC
isosceles triangle scale diagram
proportion sum of the angles of a triangle
length on enlargement
length on actual size drawing
Assignment 1
1. Draw an Isosceles Triangle on graph paper
2. Measure and label each side of the triangle
3. Measure and label each angle of the triangle
4. Using a scale factor of 2, enlarge the triangle and draw it on your graph
5. Measure and label each side and angle of the new triangle.
6. Show your calculations for the scale factor.
7. What is the scale factor of your original triangle if you reduce by 50%?
Grand Manan Community School
Ms. Norman's wiki link: http://msnormanwiki.wikispaces.com/
The grade 9 Mathematics curriculum offers students and parents the opportunity to access the textbook via the internet. The website is www.mathmakessense.ca . Student username is math9_student and password is student2010
The grade 9 Mathematics curriculum offers students and parents the opportunity to access the textbook via the internet. The website is www.mathmakessense.ca . Student username is math9_student and password is student2010
