A metal pipe is 77 cm long the inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm find its inner curved surface area outer curved surface area total surface area .
A metal pipe is 77 cm long the inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm find its inner curved surface area outer curved surface area total surface area .
Find the square roots of 4x square+3x+5=0 by method of completing sqaures
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