Advertisements
Advertisements
प्रश्न
Circumference of a circle is always ______.
पर्याय
more than three times of its diameter
three times of its diameter
less than three times of its diameter
three times of its radius
Advertisements
उत्तर
Circumference of a circle is always more than three times of its diameter.
Explanation:
We know that,
Circumference of a circle = 2πr
∴ Circumference = 2 × 3.14 × r ...[∵ π = 3.14]
⇒ Circumference = 3.14 × d ...[∵ d = 2r]
So, circumference of circle is always more than three times of its diameter.
संबंधित प्रश्न
The minute hand of a clock is 10cm long. Find the area of the face of the clock described by the minute hand between 9 A.M. and 9.35 A.M.
The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is traveling at a speed of 66 km per hour? [Use Π = 22/7]
In the given figure, ∆ ABC is a right-angled triangle in which ∠ A is 90°. Semicircles are drawn on AB, AC and BC as diameters. Find the area of the shaded region

Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
28 mm
Find the circumference of a circle whose area is 301.84 cm2.
Find in terms of x the length of the arc that subtends an angle of 30°, at the centre of circle of radius 4 cm.
In circle of radius 6cm, chord of length 10 cm makes an angle of 110° at the centre of circle find The area of sector
The radius of the wheel of a vehicle is 42 cm. How many revolutions will it complete in a 19.8-km-long journey?
The wheels of the locomotive of a train are 2.1 m in radius. They make 75 revolutions in one minute. Find the speed of the train in km per hour.
A cylindrical bucket, whose base radius is 20 cm, is filled with water to a height of 25 cm. A heavy iron spherical ball of radius 10 cm is dropped to submerge completely in water in the bucket. Find the increase in the level of water.
Draw the circumcircle of Δ PMT in which PM = 5.4, P = 60°, M = 70°.
Find the radius of the circle whose circumference is equal to the sum of the circumferences of the circles having radius 15 cm and 8 cm.
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | ...... | 72.6 cm |
Find the area and perimeter of the circles with following: Diameter = 77cm
The circumference of a circle is numerically equal to its area. Find the area and circumference of the circle.
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 = 56 m
The area of a square is 100 cm2. The circumference (in cm) of the largest circle cut of it is ______.
The area of a semicircle of radius 4r is ______.
