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Find the length of side a. Do not use a calculator 45° A (Simplify your answer, including any radicals. Use integers or fract
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105 5 a 450 A В LA + LB + LC = 180° [ Sum of interrich => angle of a theangle LB = 180°- (LA+LL) 180°-( 45°+ 105°) = LB - 30°

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