Question
Which layer of the Earth's atmosphere contains the ozone
layer?Solution
The ozone layer is located in the stratosphere , which absorbs and protects us from harmful UV radiation.
Lateral surface area of a cube is 420 cm2 less than the lateral surface area of a cylinder. Height of cylinder is 2R cm and radius is R cm. I...
A square’s side is 25% less than the length of a rectangle. The area and breadth of the rectangle are 2000 cm² and 40 cm respectively. Calculate the ...
- The area of the base of a rectangular water tank is 450 m² and the volume of water contained in it is 15750 m³. Find the height of the water level in the...
If the length of the rectangular pipe is 2 times of its breadth and 5 times of its height. Find the total surface area if its volume is 600 cm³?
The angle of elevation of the top of an unfinished tower at a point distant 78 m from its base is 30°. How much higher must the tower be raised (in ...
If each interior angle of a regular polygon is 135 degrees, then number of side of this polygon is
- Seven cubes, each of edge 7 cm, are attached in a row to make a cuboid. Find its total surface area.
The cost of fencing a rectangular field at the rate of Rs. 5 per meter is Rs.350. If the length of the field is 15 meters more than its breadth, then fi...
The diameter of the base of a cylindrical drum is 70 cm and its height is 15 cm. The drum is full of water and the water from the drum is transferred to...
- A cone has a height of 14 cm and a volume of 2,112 cm³. What is the ratio of the cone's height to its radius? {Take π = (22/7)}
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