I want to see how much money I

spend every day.

Hi there Ana. What are you

doing?

Hi Ben. I’m thinking about how much I

spend every day and on how to easily understand it.

Well, there is one way you could look at

your expenses.

How do I do that?

Simple. You could use a circle graph.Do you know what

it is and how to make it?

No, I don’t. Could you teach me?

Circle Graphs

Let’s analyzeAna gets an allowance of Php140.00 a day. She spends Php70.00 for lunch, Php35 for snacks, Php17.50 for fare, and saves the rest. How much does she save?

Let’s analyze…

Php70.00 Php35.00 Php17.50We know that your money is 140

pesos. First, let is count how much is spent from this amount and subtract

that to your money to get your savings

Php70.00 Php35.00 Php17.50+ +

=Daily cost: Php117.50

Daily cost: 117.50

money: 140.00minus

savings: 17.50equals

LUNCH, 70

SNACK, 35

FARE, 17.5

SAVINGS, 17.5

Using this Circle graph we see how you use your money everyday.

How do you make a circle

graph?

How to make a Circle Graph?

?? ??

Steps in making a circle graph:1. Get the percent of each item.

Php70.00

= 50%

÷Php140.00

Steps in making a circle graph:1. Get the percent of each item.

= 25%

Php35.00÷

Php140.00

Steps in making a circle graph:1. Get the percent of each item.

= 0.125%

÷Php140.00

Php17.50

Steps in making a circle graph:1. Get the percent of each item.

= 0.125%

÷Php140.00

Php17.50

Steps in making a circle graph:2. Determine the number of degrees for each

item. A circle contains 360°. To determine the number of degrees for each item, multiply 360° by the corresponding fractional part or percent.

Php70.00 = 50%

360° x

50%

= 180°

0°

Lunch

Php17.50 = 25%

360° x

25%

= 90°

Snack0°

Php17.50 =0.125%

360° x

0.125%

= 45°

Fare0°

Php17.50 =0.125%

360° x

0.125%

= 45°

Savings0°

Steps in making a circle graph:2. Using a compass, draw a circle. Mark the

center of the circle.

Steps in making a circle graph:3. Using a protractor, draw in the circle the

number of degrees for each item.

Steps in making a circle graph:3. Using a protractor, draw in the circle the

number of degrees for each item.

Steps in making a circle graph:3. Using a protractor, draw in the circle the

number of degrees for each item.

LUNCH

SNACK

FARE

SAVING

LUNCH, 70

SNACK, 35

FARE, 17.5

SAVINGS, 17.5

This is now what your circle graph

looks like.Thank you, Ben.

Let’s try this…• Construct a circle graph showing the enrolment by grade of Saint Andreah Academy for school year 2015-2016.

Grade Level Number of PupilsI 360II 300III 240IV 120V 120VI 60

Total 1200