Advertisements
Advertisements
प्रश्न
Circumference of a circle of diameter 5 cm is ______.
पर्याय
3.14 cm
31.4 cm
15.7 cm
1.57 cm
Advertisements
उत्तर
Circumference of a circle of diameter 5 cm is 15.7 cm.
Explanation:
Given, diameter of a circle = 5 cm
∴ Radius = `5/2` cm ...`[∵ "Radius" = "Diameter"/2]`
Now, circumference = 2πr
= `2 xx 22/7 xx 5/2`
= `110/7`
= 15.7 cm
APPEARS IN
संबंधित प्रश्न
The length of minute hand of a clock is 14 cm. Find the area swept by the minute hand in one minute. (Use π = 22/7)
Find the area of a quadrant of a circle whose circumference is 88 cm.
Find the area and perimeter of the following semi-circle :
Diameter= 5.6 cm
The diameter of a right circular cylinder is 12 m and the slant height is 10 m. Find its curved surface area and the total surface area .
Find the volume and the surface area of the spheres in the following :
Radius = 7 cm
A cylindrical beaker of 7 cm diameter is partly filled with water. Determine the number of spherical marbles of diameter 1.4 cm that are to be submerged in it to raise the water level by 5.6 cm
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.
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.
Find the area of a circular field that has a circumference of 396m.
The area between the circumference of two concentric circles is 2464cm2. If the inner circle has a circumference of 132cm, calculate the radius of the outer circle.
