Area of a Circle Donut From Inner Radius and Area to Outer Radius (Equation)

Level 1

This math topic focuses on understanding and calculating the area of a "circle donut". More specifically, it requires finding the outer radius of the donut, given its area and inner radius. This relates to the broader field of Geometry - Circle Area, Sectors, and Donuts. Questions present multiple choice answers for students to select from, enhancing their problem-solving skills in geometrical calculations related to circle areas.

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Circle Donut From Inner Radius and Area to Outer Radius (Equation)

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Find the outer radius of the donut with an area of 80 π and an inner radius of 1

r=?r=1

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