Advertisements
Advertisements
प्रश्न
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with ______.
Advertisements
उत्तर
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with π.
Explanation:
∵ Circumference = 2πr
Since, diameter (d) = 2r
So, C = π × d
Hence, π is the answer.
APPEARS IN
संबंधित प्रश्न
Three semicircles each of diameter 3 cm, a circle of diameter 4.5 cm and a semicircle of radius 4.5 cm are drawn in the given figure. Find the area of the shaded region.
In the given figure, the shape of the top of a table is that of a sector of a circle with centre O and ∠AOB = 90°. If AO = OB = 42 cm, then find the perimeter of the top of the table.
A wire when bent in the form of an equilateral triangle encloses an area of `121sqrt(3)` cm2. The same wire is bent to form a circle. Find the area enclosed by the circle.
Sand from a cylindrical bucket 32 cm in height and 18 cm in radius is poured onto the ground making a conical heap 24 cm high. Find the radius of the conical heap.
Find the volume and the surface area of the spheres in the following :
Diameter= 6.3 cm
In the adjoining figure, the radius is 3.5 cm. Find:
(i) The area of the quarter of the circle correct to one decimal place.
(ii) The perimeter of the quarter of the circle correct to one decimal place. ( Take π = `22/7`)
The circumference o a garden roller is 280cm. How many revolutions does it make in moving 490m?
Find the number of revolutions made by a circular wheel of area 1.54 m2 in rolling a distance of 176 m.
Circumference of a circle disc is 88 cm. Its radius is ______.
Ishika has designed a small oval race track for her remote control car. Her design is shown in the figure. What is the total distance around the track? Round your answer to the nearest whole cm.
