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Areas Related to Circles

Mathematics · CBSE Class 10 · English Medium · 20 questions and answers

Sample questions

Q: What is a segment of a circle?

A: The region between a chord and its corresponding arc.

Q: How do you find the area of a minor segment?

A: Area of the sector minus the area of the triangle formed by the two radii and the chord.

Q: What is the area of a circle of radius r?

A: A=\pi r^2.

Q: What is the circumference of a circle of radius r?

A: C=2\pi r.

Q: Write the formula for the length of an arc of a sector with angle \theta.

A: \text{arc}=\dfrac{\theta}{360^\circ}\times2\pi r.

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