Question
Why does a large fire in the open appear to be fanned by
strong winds?Solution
A fire in the open seems fanned by winds because hot air rises and cooler air rushes in to replace it, intensifying the flames.
Find the area of sector of a circle whose radius is 21 cm and angle subtended by the sector at centre of circle is 45 ° .
The area of a square is 196 cm2 which is 68 cm2 less than that of a rectangle. Find the perimeter of the rectangle if the length o...
12 spheres of the same size are made by melting a solid cylinder of 12cm diameter and 12cm height. The Diameter of each sphere is.
A sphere is melted to form 81 identical cylinders. If radius of each cylindrical is 1/3rd of the radius of sphere and height of each cylinder...
The area of a circular garden is 616 m2. Find its radius. (Take pi = 22/7)
The shape of an toy is a right circular cylinder with a hemisphere on bottom and a right circular cone on the top. The radius of the cylindrical part is...
If a wheel covers a distance of 1760 m in 80 rotations, then the diameter of the wheel is?
The breadth of a rectangle is increased by 9 cm, it will become twice the length of the rectangle. If the new perimeter is 294 cm, then find the origina...
The length of a 540 metre long rope is 9 times the perimeter of a rectangular German park. Find the area of the rectangular park ...
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