Question

construct triangle ABC such that a b is equal to 2.5 CM BC is equal to 6 cm and ac is equal to 6.5 CM measure angle b

Answer 1

ac=ab
${ac}^{2} = \sqrt{ {ab + bc }^{2} } \\ {6.5}^{2} = {2.5}^{2} + {6}^{2} \\ 42.25 = 6.25 + 36 \\ 42.25 = 42.25 \\ lhs = rhs \\ soangle \: b = 90degre$