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Maths Puzzle
Algebra
How can I find the area of a tower of a castle. The diameter is 7 but the tower has a open areas in the top each one has 3 cm of area.
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Book Other Question
the sides of a triangle touch a parabola and two of its angular points lie on another parabola with its axis in the same direction. prove that the locus of the third angular point is another parabola.
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48=6(x-1)-3x