Question

Activity : Complete the proof of the theorem. Theorem : If measures of angles of a triangle are 45°, 45°, 90° then the length of each side containing the right angle is 1 Proof : In A ABC, ZB = 90° and ZA= ZC = 45° A X hypotenuse. V2 1450 ... BC = AB By Pythagoras theorem BE 45° AB2 + BC2 AB2 + = AC ... : (BC = AB) Fig. 3.31 .. 2AB2 = ... AB - .. AB - 1 2 AC This property is called 45°-45°-90° theorem.​

Answer 1

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