Optional Topic D begins the learning of Pythagorean Theorem. Students are shown the “square within a square” proof of the Pythagorean Theorem. The proof uses concepts learned in previous topics of the module, i.e., the concept of congruence and concepts related to degrees of angles. Students begin the work of finding the length of a leg or hypotenuse of a right triangle using a2 + b2 = c2. Note that this topic will not be assessed until Module 7.
Grade 8 Mathematics Module 2, Topic D, Overview
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