Areas Related to Circles
Bihar Board · Class 10 · Mathematics
Most important questions from Areas Related to Circles for Bihar Board Class 10 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
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What does θ represent in sector and arc calculations?
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Angle in degrees
θ represents the angle of the sector or arc measured in degrees.
What is the default interpretation of 'sector' in mathematical discussions?
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Minor sector
Unless specified otherwise, 'sector' typically refers to the minor sector of a circle.
What is the total circumference of a circle with radius r?
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2πr
The circumference of a circle is calculated by multiplying the diameter by π, which is 2πr.
What is the total area of a circle with radius r?
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πr²
The area of a circle is calculated by multiplying π by the radius squared.
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