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.Management Sciences
Category: Areas
A paper is in a square form whose one side is 20 cm. Two semi circles are drawn on its opposites as diameters. If these semi circles are cut down what is the area of the remaining paper?
A. (400 – 100π) cm2</sup
B. (400 – 2π) cm2</sup
C. (400 – 200π) cm2</sup
D. 200π cm2</sup
The wire bent in the form of a square enclose an area of 484 Sq.cm. If the same wire is bent so as to from a circle than the area enclosed will be_________?
A. 484Sq.cm
B. 538 2/7 Sq.cm
C. 616 Sq.cm
D. 644 Sq.cm
An agricultural field is in the form of a rectangle of length 20m and width 14m. A pit 6m long 3m wide and 2.5m deep is dug in a corner of the field and earth taken out of the pit is spread uniformly over. The remaining area of the field. The level of the field has raised by________?
A. 15.16cm
B. 16.17cm
C. 17.18cm
D. 18.19m
The perimeter of a rhombus is 68 cm and one of its diagonals is 16 cm. Find its area?
A. 260 cm2
B. 240 cm2
C. 280 cm2
D. 220 cm2
If an area enclosed by a circle or a square or an equal triangle is the same then the maximum perimeter is possessed by_________?
A. Circle
B. Square
C. Equilateral Triangle
D. Both Triangle and Square
The area of a circle is increased by 22Sq.cm when it’s radius is increased by 1cm. The original radius of the circle is_________?
A. 6cm
B. 3.2 cm
C. 3 cm
D. 3.5 cm
A rectangular grass field is 75 m * 55 m, it has a path of 2.5 m wide all round it on the outside. Find the area of the path and the cost of constructing it at Rs.2 per sq m?
A. 675, Rs.1350
B. 575, Rs.1350
C. 1350, Rs.675
D. None
The side of a rhombus is 26 m and length of one of its diagonals is 20 m. The area of the rhombus is_______?
A. 529 sq m
B. 240 sq m
C. 260 sq m
D. 480 sq m
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