Advertisements
Advertisements
प्रश्न
Diameters of different circles are given below. Find their circumference (Take π = `22/7`)
d = 70 cm
Advertisements
उत्तर
Diameter d = 70 cm
Circumference C = πd units
= `22/7 xx 70`
= 22 × 10
= 220 cm
APPEARS IN
संबंधित प्रश्न
The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sum of distances travelled by their tips in 2 days. (Take π = 22/7)
A steel wire when bent is the form of square encloses an area of 12 cm2. If the same wire is bent in form of circle. Find the area of circle.
Four equal circles, each of radius 5 cm touch each other as shown in fig. Find the area included etween them.
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 radius of a circular garden is 100 m. There is a road 10 m wide, running all around it. Find the area of the road and the cost of levelling it at Rs 20 per m2. [Use π = 3.14]
Find the diameter of the sphere for the following :
Volume = `523 17/21` cm3
The numerical value of the area of a circle is greater than the numerical value of its circumference. Is this statement true? Why?
Find the radius of a circle whose circumference is equal to the sum of the circumferences of two circles of radii 15 cm and 18 cm.
Length of tape required to cover the edges of a semicircular disc of radius 10 cm is ______.
Ratio of the circumference of a circle to its diameter is denoted by symbol ______.
