Area of Circles

Grade 645 minutes

Learning Objective

I can calculate the area of a circle given either the radius or the diameter.

Practice Questions

This lesson includes 7 practice questions to reinforce learning.

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1. Define the terms "radius" and "diameter" in relation to a circle. How are they related to each other?

2. What is the formula for calculating the area of a circle? Explain what each variable in the formula represents.

3. A circle has a radius of 5 cm. Calculate its area, using 3.14 as an approximation for π.

...and 4 more questions

Educational Video

Area of a circle | Perimeter, area, and volume | Geometry | Khan Academy

Khan Academy

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