A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm. The total area of the wet surface is:
Area of the wet surface = [2(lb + bh + lh) - lb]
= 2(bh + lh) + lb
= [2 (4 x 1.25 + 6 x 1.25) + 6 x 4]m2
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Find the area and circumference of a circle if the radius is 14 cm. (Take pi = 22/7)
Find the curved surface area (in cm2) of a right circular cylinder of diameter 21 cm and height 10 cm.
The length, breadth and height of a cuboidal box are in the ratio 7 : 5 : 3 and its whole surface area is 27832 sq.cm. Its volume is:
Find the total surface area (in cm2) of a right circular cone of diameter 28 cm and slant height 12 cm.
If the edge of a cube is increased by 4 cm, the volume will increase by 988 . Then the original length of each edge of the cube is
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Find the volume (in cm3) of a cuboid of length, breadth and height of 7.5 cm, 5 cm and 6 cm respectively.
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