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• CBSE×
• Class 7×
• Mathematics×
• Perimeter And Area×
• Perimeter And Area Of Circles×

# Perimeter And Area Of Circles Free Doubts and Solutions

## the area of circular plot is 3850 sq.m. find the radius of the plot. find the cost of fencing the plot at  Rs 10 per metre.

Asked by hirithu 3rd April 2019, 8:31 PM

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## The diameter of a circular garden is 84 m. On its outside,there is around 3.5 m wide. Find the cost of constructing the road at Rs 20 per square meter.

Asked by Upal36745 3rd January 2019, 9:29 PM

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## Semicircular parks are made with all sides of a square field with side 14 m find area of the four semicircluar park

Asked by gurdayalmalhi 12th November 2018, 8:57 PM

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## The diameter of a cycle wheel is 70cm . How far will it go in 20 revolutions?

Asked by raashi.bhatjiwale 7th March 2018, 12:44 PM

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## the diameter of a wheel is 1.26m.how far will it go in 20 revolutions?

Asked by raashi.bhatjiwale 7th March 2018, 12:40 PM

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## Anu wants to put a lace to decorate the edge of a circular cake having diameter 12 cm. Find the length of lace required and also the cost, if 1 cm of the lace costs Rs. 2.

Asked by Topperlearning User 6th June 2016, 4:36 PM

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## The diameter of a circular pipe is 20 cm. What length of a tape is required to wrap twice around the pipe? (Take = 3.14)

Asked by Topperlearning User 8th December 2015, 3:27 PM

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## I need extra questions that indulge all the the perimeter and area of - squares, rectangles, parallelograms, triangles, circles. Mixed questions

Asked by archanagoel23 7th December 2015, 4:40 PM

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## The radius of a wheel of a bus is 0.70m. How many revolutions will it make in covering 22 km.

Asked by siddharth 1st March 2015, 2:31 PM

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## WHY PI IS NOT A RATIONAL NUMBER?

Asked by okpsajitha 17th February 2015, 1:58 PM

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## WHAT DO WE MEAN BY- THE RATIO OF THE CIRCUMFERENCE OF A CIRCLE AND ITS DIAMETER IS ALWAYS CONSTANT ?

Asked by Ruchi 26th January 2015, 3:59 PM

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## What is the circumference of a circle with radius 14 cm?

Asked by Topperlearning User 14th October 2014, 10:42 AM

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## The area of a circular cardboard sheet is 154 cm2. Find the radius of sheet.

Asked by Topperlearning User 14th October 2014, 10:41 AM

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## Find the area and circumference of a circular park whose radius is 20 cm.

Asked by Topperlearning User 8th August 2014, 12:52 PM

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## A wire is in the shape of a square of side 22 cm. If the wire is re-bent into a circle, find its radius. Also, find the area of circle.

Asked by Topperlearning User 15th December 2013, 5:43 AM

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## In the figure given below, a circle is inscribed inside another circle. The radius of the outer circle is 12 cm and that of the inner circle is 7 cm. Find the area of the shaded portion between the circles.

Asked by Topperlearning User 25th November 2013, 1:27 AM

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## Find the circumference of a circular disc with diameter 9 cm.

Asked by Topperlearning User 25th November 2013, 1:15 AM

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## Find the area of a circle of radius 10 cm (use  = 3.14).

Asked by Topperlearning User 25th November 2013, 1:13 AM

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## What will be the radius of a circular park having circumference equal to 396 m?

Asked by Topperlearning User 25th November 2013, 1:12 AM