# Solution - Problems Based on Areas and Perimeter Or Circumference of Circle, Sector and Segment of a Circle

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ConceptProblems Based on Areas and Perimeter Or Circumference of Circle, Sector and Segment of a Circle

#### Question

A bicycle whell makes 5000 revolutions in moving 11 km. Find the diameter of the wheel

#### Solution

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#### Similar questions

In Fig. 4, ABCD is a square of side 14 cm. Semi-circles are drawn with each side of square as diameter. Find the area of the shaded region.

(

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In Fig. 9, is shown a sector OAP of a circle with centre O, containing ∠θ. AB is perpendicular to the radius OQ and meets OP produced at B. Prove that the perimeter of shaded region is

r[tantheta+sectheta+(pitheta)/180-1]

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In  Fig 4, a circle is inscribed in an equilateral triangle ABC of side 12 cm. Find the radius of inscribed circle and the area of the shaded region.[Use π=3.14 and √3=1.73]

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A pendulum swings through an angle of 30º and describes an arc 8.8 cm in length. Find the length of the pendulum.

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The radius of a circle is 7 cm. find the circumference of the circle.

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