Question
What will be the total surface area of a triangular
pyramid whose sides are all 2cm long?Solution
A = 2 cm The total surface area of the triangular pyramid = 4(√3/4 × a ×a) = 4 ×√3 /4 ×4 = 4√3cm²
The area of a rectangle with length and breadth in the ratio of 7:3, respectively, is 189 cm². If the perimeter of the rectangle is the same as the per...
Perimeter of a rectangle is 70% more than that of a square of side 22 cm. If the difference between the length and breadth of the rectangle is 15 cm, re...
Which of the following two will provide more volume?
I) A cuboid of edges 6 cm, 7 cm and 8 cm
II) A cube of edge 7 cm
(160/3)% of the raindrops could have been collected, when 5 cm of rain has fallen on a part of land of area 1.8 km2, in a tank having a 240 m...
- A rectangle has its sides measuring 32 cm in length and 18 cm in breadth. If the length is increased by 50% and the breadth is reduced by 20%, calculate th...
A cylindrical water tank has a radius of 7 m and a height of 10 m. How much water will the tank hold in liters?
What is the area of a regular hexagon of side 6 cm?
The length of a rectangle, area of which is 315 cm2, is equal to the radius of a circle of area 3850 cm2. Find the perimeter of th...
The capacity of a cylindrical tank is 2376 m³. If the radius of the tank is 21 m, then the depth of the tank is:
The lateral surface area of frustum of a right circular cone, if the area of its base is and the diameter of circular upper surface is 4 cm and slant he...
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