5
QuizMultiple Choice
Lesson 7: Area of a Circle and a Sector
Question 5 of 10 • *CISD-Geometry B-CR
The diagram shows one way to develop the formula for the area of a circle. Pieces of a circle with radius r are rearranged to create a shape that resembles a parallelogram.
Answer
A
A = (2πr)(r)B
A = (2πr)(2r)C
A =(2πr)(r)
D
A =(2πr)(r2)