The area of the largest triangle that can be inscribed in a semi-circle of radius r, is :
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If radius of a circle is 3 cm, what is the area of the circle in sq. cm ?
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The base of an isosceles is 14 cm and its perimeter is 36 cm. Find its area.
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The total cost of flooring a room at Rs. 8.50 per square metre is Rs. 510. If the length of the room is 8 m, its breadth is :
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The diagonal of a rectangular field is 15 metres and the difference between its length its length and width is 3 metres. The area of the rectangular field is :
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A room 5m × 8 m is to be carpeted leaving a margin of 10 cm from each wall. If the cost of the carpet is Rs. 18 per sq. meter, the cost of carpeting the room will be :
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The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 7803 sq. mtr, what is the breadth of the rectangular plot ?
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A coaching institute wants to execute tiling work for one of its teaching halls 60 m long and 40 m wide with a square tile of 0.4 m side. If each tile costs Rs. 5, the total cost of tiles would be :
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The ratio of the area of a square to that of the square drawn on diagonal is :
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The area of the four walls of a room is 120 m2 and the length is twice the breadth. If the height of the room is 4 m, then the area of the floor is :
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The perimeter of an isosceles triangle is equal to 14 cm and the lateral side is to the base in the ratio 5 : 4. The area of the triangle is :
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The areas of two equilateral triangles are in the ratio 25 : 36. Their altitudes will be in the ratio :
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A diagonal of a rhombus is 6 cm. If its area is 24 cm2 then the length of each side of the rhombus is :
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The magnitude of the area of a circle is seven times that of its circumference. What is the circumference (in units) of the circle ?
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A small disc of radius r is cut out from a disc of radius R. The weight of the disc which now has a hole in it, is reduced to of the original weight. If R = xr, what is the value of x ?
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The area of the largest circle, that can be drawn inside a rectangle with side 18 cm by 14 cm, is :
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If the radius of a circle is increased by 75%, then its circumference will increase by :
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A plate on square base made of brass is of length x cm and width 1 mm. The plate weights 4725 gm. If 1 cubic cm cm of brass weight 8.4 grams, then the value of x is :
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What would be the area of a rectangle whose area is equal to the area of a circle of radius 7 cm ?
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The perimeter of a rectangle is 60 metres. If its length is twice its breadth, then its area is :
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