Advertisements
Advertisements
प्रश्न
The diameter of the wheel of a cart is 1.05 m. How much distance will the cart cover in 1000 rotations of the wheel?
Advertisements
उत्तर
Given:
Diameter of the wheel (d) = 1.05 m
The value of π = `22/7`
Number of rotations = 1000
Circumference = rd
= `22/7` × 1.05
= `22/7` × `105/100`
= `22 × (15)/100`
= `330/100`
= 3.3 m
In 1000 rotations, the distance covered
= 3.3 m × 1000
= 3300 m
= 3.3 km
APPEARS IN
संबंधित प्रश्न
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.
The circumference of a circle is 39.6 cm. Find its area.
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 area of a circular ring enclosed between two concentric circles is 88 cm 2. Find the radii of the two circles, if their difference is 1 cm.
A 7 m road surrounds a circular garden whose area is 5544 m2. Find the area of the road and the cost of tarring it at the rate of Rs.150 per sq m.
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.
The radius of a circular garden is 56 m. What would it cost to put a 4-round fence around this garden at a rate of 40 rupees per metre?
Find the area and perimeter of the circles with following: Radius = 10.5cm
Circumference of a circle is always ______.
A photograph of Billiard/Snooker table has dimensions as `1/10`th of its actual size as shown in the following figure:
The portion excluding six holes each of diameter 0.5 cm needs to be polished at rate of ₹ 200 per m2. Find the cost of polishing.
