Homework for Monday, February 7

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%?