Lesson 7.5 Concept: How to make and use circle graphs

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Presentation transcript:

Lesson 7.5 Concept: How to make and use circle graphs Guidelines: There are 360o in a whole circle. The angle of a part of a circle can be found by solving a proportion. A circle graph represents data as parts of a circle. To find the measure of a circle graph, change percents to an angle by multiplying by 360o 25% 0.25 • 360 = 90o

Practice: 85% 5% 38%

Solve using a proportion: 250 students were asked to name their favorite candy bar. The results were…….. 26% Snickers, 34% Hershey, 12% Butterfinger, 28% M&M’s How many students chose each type in the poll? 26% Butterfinger x 26 Solve using cross products = 250 100 Finish solving for all the data.

Use the data from the previous slide to make a circle graph.