Area and circumference challenge problems (K-A)

S#	Lecture	Course	Institute	Discipline
1	Area of a shaded region (K-A)	Area and circumference challenge problems (K-A)	Khan Academy	Basic and Health Sciences
2	Finding circumference of a circle when given the area (K-A)	Area and circumference challenge problems (K-A)	Khan Academy	Basic and Health Sciences
3	Impact of increasing the radius (K-A)	Area and circumference challenge problems (K-A)	Khan Academy	Basic and Health Sciences

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