Advertisements
Advertisements
प्रश्न
The wheel of a bullock cart has a diameter of 1.4 m. How many rotations will the wheel complete as the cart travels 1.1 km?
Advertisements
उत्तर
Diameter of the wheel, d = 1.4 m
Circumference, c = πd
= `22/7xx1.4`
= 22 × 0.2
= 4.4 m
Distance covered in 1 rotation = circumference of the wheel = 4.4m
∴ Total number of rotations taken by wheel = `"total distance"/"circumference"`
= `(1.1 xx 1000)/4.4`
= `(11 xx 1000)/44`
= `11000/44`
= 250
Hence, the wheel of the bullock cart will complete 250 rotations as the cart travels 1.1 km.
संबंधित प्रश्न
In figure, ΔABC is an isosceles triangle with perimeter 44 cm. The base BC is of length 12 cm. Side AB and side AC are congruent. A circle touches the three sides as shown in the figure below. Find the length of the tangent segment from A to the circle.
A car travels 1 km distance in which each wheel makes 450 complete revolutions. Find the radius of wheel.
The areas of two circles are in the ratio 4: 9. What is the ratio between their circumferences?
A sector of 56°, cut out from a circle, contains 17.6 cm2. Find the radius of the circle.
Find the circumference of the circle whose area is 25 times the area of the circle with radius 7 cm.
Find the area and perimeter of the following semi-circle :
Radius= 1.4 cm
A conical tent with a capacity of 600 m3 stands on a circular base of area 160 m2 Find in m2 the area of the canvas.
The circumference of a circle is 440 cm. Find its radius and diameter. (Take π = `22/7`)
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | 28 cm | ...... |
In a circle of diameter 42 cm, if an arc subtends an angle of 60° at the centre, where `pi = 22/7` then length of an arc is ____________.
