If the diagonal of the square is 16 cm, then find the area of the square?1). 128 sq.cm2). 100 sq.cm3). 56 sq.cm4). 256 sq.cm
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1. A cylindrical can whose base is horizontal and is of internal radius 5.7 cm contains sufficient water so that when a solid sphere is placed inside, water just covers the sphere. The sphere fits in the can exactly. The depth of water in the can before the sphere was put is
2. The length of a room floor exceeds its breadth by 20 m. The area of the floor remains unaltered when the length is decreased by 10 m but the breadth is increased by 5 m. The area of the floor (in square metres) is :
3. The sides of a rectangular plot are in the ratio 5:4 and its area is equal to 500 sq.m. The perimeter of the plot is :
4. The radii of two spheres are in the ratio 3:2. Their volume will be in the ratio :
5. The area of the largest triangle that can be inscribed in a semi-circle of radius r in square unit is:
6. The inradius of an equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?
7. Find the area of a parallelogram with a diagonal of length 8 cm and having adjacent sides of 4 cm and 6 cm.
8. If base of a parallelogram is 3 m more than adjacent side of a parallelogram and product of length of adjacent sides is 108 m. If the area of parallelogram is 72 m2, find height of the parallelogram?
9. A square room has verandah of uniform width of 3 m around it. The area of the verandah is 288 sq. m. Find the cost of flooring the room if the cost of flooring per square metre is Rs. 15.
10. The length and breadth of a square are increased by 30% and 20% respectively The area of the rectangle so formed exceeds the area of the square by
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