Advertisements
Advertisements
प्रश्न
Ratio of the circumference of a circle to its diameter is denoted by symbol ______.
Advertisements
उत्तर
Ratio of the circumference of a circle to its diameter is denoted by symbol π.
Explanation:
∵ Circumference = 2 πr
⇒ C = πd ...[∵ d = 2r]
⇒ `C/d = π`
⇒ π = C : d
Hence, π is the answer.
APPEARS IN
संबंधित प्रश्न
An arc of a circle is of length 5π cm and the sector it bounds has an area of 20 π cm2. Find the radius of the circle.
Four equal circles each of radius a, touch each other. Show that area between them is `6/7a^2`
Find the diameter of the circle whose area is equal to the sum of the areas of two circles having radii 4 cm and 3 cm.
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 circumferences of two circles are in the ratio 3 : 4. The ratio of their areas is ______.
Diameter of the circular garden is 42 m. There is a 3.5 m wide road around the garden. Find the area of the road.
What is the circumference of a circle of diameter 10 cm (Take π = 3.14)?
Diameters of different circles are given below. Find their circumference (Take π = `22/7`)
d = 70 cm
Circumference of a circle of diameter 5 cm is ______.
A photograph of Billiard/Snooker table has dimensions as `1/10`th of its actual size as shown in the following figure:
The portion excluding six holes each of diameter 0.5 cm needs to be polished at rate of ₹ 200 per m2. Find the cost of polishing.
