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  1. 7th
  2. Maths
  3. Perimeter and Area
  4. Perimeter and Area of a Circle

Perimeter and Area of a Circle

Perimeter and Area
Maths
Class 7

Overview

Define the circumfrence of the circle and calculate it using the formula. Area of circle by approximated by rectangle and formula. Solve problems on circumfrence and area of circle.

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Related Questions to study

A path of width 8 m runs around a circular park whose radius is . Find the area of the path.

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Large hand of a clock is cm long. How much distance does its extremity move in minutes?

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Triangle ABC is inscribed in a circle, such that AC is a diameter of the circle (see figure above). If AB has a length of 8 and BC has a length of 15,what is the circumference of the circle?

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Circumference of a circle is equal to 

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Find the area of a circle whose radius is 6 cm.

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Find the area of a ring whose outer and inner radii are and respectively.

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The cost of levelling a circular field at per sq. metre is . Calculate the circumference of the circular field.

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The circumference of a circle is cm. Find its area. 

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If the diameter of a circle is increased by 200%, then its area is increased by

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A circular swimming pool is surrounded by a concrete walk 4 m wide If the area of the walk is  that of the pool then the radius of the pool is_______

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