A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is:

If the radius of a circle is decreased by 50% , find the percentage decrease in its area.

If the length of diagonal AC of a square ABCD is 5.2 cm then area of the square ABCD is?

Find the area of a rectangle having 15m length and 8m breadth.

If D,E and F are respectively the midpoint of the sides BC , CA and AB of a ? ABC and the area of ? ABC = 36m 2. Then area of ? DEF is?

The altitude drawn to the base of an isosceles triangle is 8cm and the perimeter is 32cm. Find the area of the triangle?

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