Advertisements
Advertisements
प्रश्न
Diameters of different circles are given below. Find their circumference (Take π = `22/7`)
d = 70 cm
उत्तर
Diameter d = 70 cm
Circumference C = πd units
= `22/7 xx 70`
= 22 × 10
= 220 cm
APPEARS IN
संबंधित प्रश्न
The wheels of the locomotive of a train are 2.1 m in radius. They make 75 revolutions in one minute.
In making 1000 revolutions, a wheel covers 88 km. The diameter of the wheel is
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 15 cm , radius = 8 cm
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 8 cm , diameter = 12 cm
Find the area and perimeter of the following sector :
Diameter = 42 cm, angle at the centre is 100·.
The radius of a circle is 21 cm. Find the circumference (Take π = `3 1/7`).
The radius of two circles are 20 cm and 13 cm. Find the difference between their circumferences. (Take π =`22/7`)
A circular racing track has inner circumference 528 m and outer circumference 616 m. Find the width of the track.
A wire in the form of a circle of radius 42cm. It is bent into a square. Determine the side of the square and compare the area of the regions enclosed in the two cases.
The numerical value of the area of a circle is greater than the numerical value of its circumference. Is this statement true? Why?
