Advertisements
Advertisements
Question
The diameter of a circular field is 56 m. Find its circumference and cost of fencing it at the rate of ₹80 per m. (Take π =`22/7`)
Advertisements
Solution
Given, Diameter of a circular field = 56 m
∴ Radius =`56/2` = 28 m
Circumference of the circle = 2πr
= `2xx22/7xx28` m
= 2 × 22 × 4 m
= 176 m
The cost of fencing 176 m is,
= 176 m × ₹80 per m
= ₹14,080
APPEARS IN
RELATED QUESTIONS
In the figure given below, PQRS is square lawn with side PQ = 42 metres. Two circular flower beds are there on the sides PS and QR with centre at O, the intersections of its
diagonals. Find the total area of the two flower beds (shaded parts).
The circumference of a circle exceeds the diameter by 16.8 cm. Find the radius of the circle.
Find the circumference of the inner and the outer circles, shown in the adjoining figure? (Take π = 3.14)
The circumference of a circle exceeds diameter by 16.8 cm. Find the circumference of
circle.
The radius of a sector of a circle is 7 cm. If the measure of the arc of the sector is 210°, find the area of the sector in case.
The radius of the circle is given below; find the area.
28 cm
The diameter of a circle is 28 cm.
Find its :
(i) Circumference
(ii) Area.
A circular racing track has inner circumference 528 m and outer circumference 616 m. Find the width of the track.
If the circumference of a circle is 352 metres, then its area in square metres is ____________.
