Let the side of square is 10 cm
Then the area of square = 100 cm2
When the side increased by 20% then the side of the square = 12
Therefore, the area of square = 144 cm^2
Increased k% = (144-100)/100 ×100 =44%
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90 Mins English English100 Questions100 Marks90 Mins English English100 Questions100 Marks90 Mins EnglishThe curved surface area of a cylinder having radius 5 cm and height 23 cm is:
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The surface area of a cube is 480 Find its volume.
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A cubical tank with side 50 cm is full of water. If 61 litres of water is taken out of it, the level of water in the tank will drop by:
The cost of polishing the total surface area of a solid cone at ₹ 0.50 per cm² is ₹ 5632, and the circumference of its base is 176 cm. What is the height of the cone? (Use π = 22/7)
The curved surface area of a solid metallic right circular cylinder is 1792π cm² and its base radius is 32 cm. It is melted and recast into 42 solid spherical balls of equal radius. What is the surface area (in cm²) of a ball ?
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