1.

(a) What is the maximum possible number of obtuse angles in a triangle? Justify your answer. (b) In a △ABC the side BC is extended to D. Given that ∠ABC=30∘ and ∠ACD=160∘. Find ∠BAC. [3 MARKS]

Answer»

(a) What is the maximum possible number of obtuse angles in a triangle? Justify your answer.
(b) In a ABC the side BC is extended to D. Given that ABC=30 and ACD=160. Find BAC. [3 MARKS]



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