Q2. Infinite numbers of triangles are formed as shown in figure. If total area
of these triangles is A, and A is a rational number. B is area of the regular
hexagon having length of each sides equal to sum of numerator and
denominator of A. Find the value of
Btan 2100
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Answer:
The area of the cross section = area of the trapezium
= 12 (10 + 6)8 cm2
= 64 cm2
(ii) The volume of the cylinder = (Area of the cross Section) × length
= 64 cm2 × 20 cm
= 1280 cm3
the cross section of a cylinder is a regular hexagon of side 4cm and its height measures 12cm. Then its total surface area
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