exam Maths Puzzle Numerical Ability

How do you draw a figure with an area of 64 cm squared and a perimeter of 64 cm????? I have tried trial and error, but it does not seem to be working. Please help me. Thank you.

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exam Other Question

Factor completely. 12x^3 – 3xy^2 I got 3x(4x – y)(x + y) Is this correct The position vector of the points A,B,C are i+j+k,i+5j-k and 2i+3j+5k,
respectively.The greatest angle of the triangle ABC is
(a) 135 (b)90