Question
When the radius of a circle is increased by 1 cm, its area increases by 22 cm². What was the original radius of the circle?
More Mensuration Questions
- Calculate the diagonal of a cuboid whose dimensions are given as 18 meters in length, 12 meters in width, and 6√3 meters in height.
- If √̅1̅2̅-̅2̅√̅3̅5̅ + √̅8̅+̅2̅√̅1̅5̅ = √a + √b, where a and b are positive integers, then the value of b – a is closest to:
- The area of two similar triangles is 400 cm² and 324 cm², respectively. What is the ratio of their corresponding altitudes?
- The altitude of an equilateral triangle is 6√3 cm. Find the area of the equilateral triangle.
- A cone has a base radius of 6 cm and a height of 8 cm. If it is melted and recast into spheres of radius 2 cm, how many such spheres can be made?
- B invests 30% of his monthly salary on Travelling and 20% of remaining on Food. Again, he invested 25% of the remaining (after travelling and food expenses...
- A rectangular garden is bordered by a walkway of uniform width 5 metres. If the total area of the walkway is 1350 m², find the perimeter of the actual gard...
- Steel is used to make a hemispherical bowl that is 0.3 cm thick. The bowl's inner radius is 9 cm. Find the bowl's outside curved surface.
- A rectangular hall is 12 m long and 9 m wide. A carpet is laid leaving a uniform border of 1 m all around the inside. Find the area of the border.
- If the length of the diagonal of a square is 4.6 cm, then the area of the square is:
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