2. a) Define circumference.b) Define semi-circle – InterviewSolution

1.	2. a) Define circumference.b) Define semi-circle
Answer» the outer boundary, especially of a circular area; PERIMETER: the circumference of a circle. the length of such a boundary: a one-mile circumference. the area WITHIN a bounding line: the vast circumference of his mind.In mathematics (and more specifically GEOMETRY), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle ALWAYS measures 180° (equivalently, π RADIANS, or a half-turn). It has only one line of symmetry (reflection symmetry).

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