Advertisements
Advertisements
प्रश्न
The perimeter of a square and the circumference of a circle are equal. If the length of each side of the square is 22 cm, find:
(i) perimeter of the square.
(ii) circumference of the circle.
(iii) radius of the circle.
उत्तर
(i) Side of square = 22 cm
Perimeter of square = 4 × side
= 4 × 22 = 88 cm
(ii) Circumference of circle
Given, Perimeter of square = Circumference of circle
= 88 cm
(iii) Circumference of circle = 88 cm
∴ Radius =`"C"/(2π)=(88xx7)/(2xx22)=616/44` =14 cm
APPEARS IN
संबंधित प्रश्न
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
28 mm
If the circumference of a circular sheet is 154 m, find its radius. Also find the area of
the sheet. (Take `pi = 22/7`)
An arc of length 15 cm subtends an angle of 45° at the centre of a circle. Find in terms of 𝜋, radius of the circle.
The area of a minor sector of a circle is 3.85 cm2 and the measure of its central angle is 36°. Find the radius of the circle.
The radii of two circles are 19 cm and 9 cm, Find the radius of the circle which has circumference equal to the sum of the circumferences of the two circles.
The areas of two circles are in the ratio 4: 9. What is the ratio between their circumferences?
A square ABCD is inscribed in a circle of radius r. Find the area of the square.
A wire is in the form of a circle of radius 42 cm. It is bent into a square.
Determine the side of the square and compare the area of the regions enclosed in two cases.
The radius of a circular plot is 7.7 metres. How much will it cost to fence the plot with 3 rounds of wire at the rate of 50 rupees per metre?
Find the circumference of the circles whose radii are given below.
49 cm
