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.
Advertisements
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
The circumferences of two circles are in the ratio 2: 3. What is the ratio between their areas?
If the perimeter of a square is equal to the circumference of a circle then the ratio of their areas is
A cart wheel makes 9 revolutions per second. If the diameter of the wheel is 42 cm, find its speed in km/hr.
Find the diameter of a circle whose circumference is equal to the sum of circumference of circles with radius 10 cm, 12 cm, and 18 cm.
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | ...... | 72.6 cm |
Find the circumference of the circle whose area is 25times the area of the circle with radius 7cm.
Diameters of different circles are given below. Find their circumference (Take π = `22/7`)
d = 70 cm
Find the circumference of the circles whose radii are given below.
91 mm
The area of a quadrant of a circle whose circumference is 22 cm, is ____________.
The radii of the two circles are 19 cm and 9 cm respectively. The radius of the circle which has a circumference equal to the sum of the circumference of two circles is ____________.
