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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 four walls of a room is 140 cm2. If the length and breadth of the room were equal and the height of the room is 5 cm, then what i...
A solution is formed by mixing three liquids P, Q, and R in the ratio 4:3:2. Liquid P contains 50% alcohol, Liquid Q contains 40% alcohol, and Liquid R ...
Three cubes with sides 3 cm, 4 cm, and 5 cm are melted to form a bigger cube. What is the surface area of the bigger cube?
The weight of a cubic metre metal is 1215 kg. It is melted and cast into a square rod of 9m length. A solid cube of maximum size is taken out from one e...
The curved surface area of a cone exceeds that of a cylinder by __ cm². The radius of the cone is twice that of the cylinder. The area of the cylinder...
A rectangular plot has an area of 490 m². If the length of the rectangular plot is 24.5 m. Find the perimeter of the rectangular plot.
The total surface area of a square-based right pyramid is 1536 m², of which 37.5% is the area of the base of the pyramid. What is the volume (in mᶟ) ...
Two paths of width 5 metres are to be made in the centre of rectangular field such that they are perpendicular to each other. Find the area (in m2<...
The area of the floor of a cubical room is 49m². The length of the longest rod that can be kept in the room is
