Sequoia Middle School Mr. Toth Homework Lesson 33 – Circle Area Part 2 Name: Date: 1. A circle has a radius of 3 inches. What is its area? 2. A circle has a diameter of 5 cm. What is it’s area? 3. What is the circumference of a circle with a diameter of 20 cm? 4. What is the circumference of a circle with a radius of 50 inches? 5. A basketball hoop has a diameter of 18 inches, and a basketball has a circumference of 29.875 inches. 6. a. What is the area of the hoop? b. What is the diameter of a basketball? c. What is the area of a basketball? d. What percent is the area of a basketball compared to the hoop? A circle is divided into 5 equal sectors. What is the measure of the central angle of each sector? Per. 7. To build a circle graph, you multiply the full circle (360°) by the percent or part that it represents. For example, the central angle for a 25% sector would be 360(0.25) = 90. Convert the following percentages into central angles: a. 8. 9. 10% b. 66.6% c. 30% Complete the circle graph to represent the type of food eaten at Chipotle one night. a. Chicken burritos – 40 b. Steak Burritos – 30 c. Pork Burritos – 25 d. Plain Quesadillas – 45 e. Steak Quesadillas - 10 The International House of Pancakes sells small silver dollar pancakes (3.5 in diameter) and regular size pancakes (6 in diameter). a. What is the area of a silver dollar pancake? b. What is the area of a regular size pancake? c. What percent is a regular pancake compared to a silver dollar pancake? d. What percent is a silver dollar pancake compared to a regular pancake? e. If six silver dollar pancakes are the same price as three regular pancakes, which is a better deal?

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