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Exercise 11E ... 1 Observe the figures carefully and then answer the questions that follow. iv Which of these figures are open figures? b Which of these figures are closed figures? Which of these figures are simple curves? Which of these figures are simple closed figures? & Which figures have curvilinear boundaries? [ Which figures have linear boundaries? |
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Answer» _______________...❀♡❀...________________A CURVE is SAID to be simple if it does not cross itself.(a) Simple curve → 1,2,5,6,7A simple closed curve is that curve which FORMS a path which starts and ends at the same point. (b) Simple closed curve → 1,2,5,6,7A polygon is a two dimensional closed figure which consists of sides and vertices.(c) Polygon → 1,2A polygon in which the measure of each INTERIOR angle is less than 180° is called as a convex polygon.(d) Convex polygon → 2A polygon in which the measure of one interior angle is greater than 180° is called as a concave polygon.(e) Concave polygon → 1_______________...❀♡❀...________________ |
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