Advertisements
Advertisements
Question
In the formula, C = 2πr, ‘r’ refers to
Options
circumference
area
rotation
radius
Advertisements
Solution
In the formula, C = 2πr, ‘r’ refers to radius
APPEARS IN
RELATED QUESTIONS
If the circumference of a circular sheet is 154 m, find its radius. Also find the area of
the sheet. (Take `pi = 22/7`)
The circumference of a circle exceeds diameter by 16.8 cm. Find the circumference of
circle.
Four equal circles, each of radius 5 cm touch each other as shown in fig. Find the area included etween them.
In the given figure, ABCD is a square of side 4 cm. A quadrant of a circle of radius 1 cm is drawn at each vertex of the square and a circle of diameter 2 cm is also drawn. Find the area of the shaded region. [Use π = 3.14.]

In a circle of radius 10.5 cm, the minor arc is one-fifth of the major arc. Find the area of the sector corresponding to the major arc.
The radius of the wheel of a vehicle is 42 cm. How many revolutions will it complete in a 19.8-km-long journey?
In making 1000 revolutions, a wheel covers 88 km. The diameter of the wheel is ______.
A canvas tent is in the shape of a cylinder surmounted by a conical roof. The common diameter of the cone and the cylinder is 14 m. The height of the cylindrical part is 8 m and the height of the conical roof is 4 m. Find the area of the canvas used to make the tent.
A wheel has a diameter of 84 cm. Find how many completer revolutions must it make to cover 3.168 km.
The radii of the two circles are 19 cm and 9 cm respectively. The radius of the circle which has a circumference equal to the sum of the circumference of two circles is ____________.
