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Maths Puzzle
Numerical Ability
If 4aČ-bČ=54, then 4(2a+b)(2a-b)= ?
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(8x+2y)-(5x+4y)
my questions please send a.s.a.p.
1) Is every squar a rectangle? true or false
2) Is every parallelogram a quadrilateral?
3) Is every rhombus a rectangle?
4) Is every p