In this lesson you’ll explore further on shapes and figures bound by polygons, especially the triangles. The earlier learning so far would need a review in the sense that defined terms, the properties of various figures or their special cases would form the basis of important applications of geometry in this section i.e. proving shapes and figures are congruent. It is known that the two polygons are congruent, if they have exactly the same size and shape. This means that their interior angles and all sides must be congruent. Also these must be situated in a one-to- one correspondence. To begin with, explore on proving the congruence of triangles, which will be helpful to further know about the polygons. Then look at similarity between triangles. Similarity is like congruence in the sense of having same shape, except it will not be of he same size. Such learning will be helpful for enhancing skills, which in turn can be applied to solve the real-world problems and also doing geometry home work.
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