Question

1. complete the table by reading the circle graph. it is in percent circle form.

subject | percent of students who said it was their favourite

1. on a hike, sarah starts from point a

5
a) she walks north for 4 blocks. then she turns __ ° to the right. what direction is she facing? __
b) she walks 5 blocks to the right, and then turns _ ° to the right. she walks diagonally across the park. what direction is she heading? __
c) when she reaches the park edge, she turns what direction for 2 blocks? what is at her destination? ____

Explanation:

Step1: Analyze circle - graph for question 1

Estimate percentages from the circle - graph. Assume the circle is divided into 100 equal parts. If we estimate visually:

• Math: It seems to take about 25% of the circle.
• Phys. Ed.: It seems to take about 20% of the circle.
• Science: It seems to take about 15% of the circle.
• English: It seems to take about 10% of the circle.

Step2: Analyze direction - change for question 2a

North is considered as 0°. A 90 - degree turn to the right from north makes her face east. So the angle is 90° and the direction is east.

Step3: Analyze direction - change for question 2b

If she is facing east and walks 5 blocks to the right (which is still in the east - ward direction) and then turns 90° to the right, she will be facing south. So the angle is 90° and the direction is south.

Step4: Analyze direction - change for question 2c

When she reaches the park edge (facing south), she turns left (90° to the left) and walks 2 blocks. She is now facing east. And her destination is point B.

Answer:

1.

Subject	Percent of students who said it was their favourite
Phys. Ed.	20%
Science	15%
English	10%

2.
a) 90°, east
b) 90°, south
c) She turns 90° to the left (west - to - east direction), and her destination is point B.