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S1 Mathematics

Question post on Sat, 29/09/2018 1:01pm

Tia!

THW · Answer 1 · Post on Sun, 30/09/2018 2:09am

(a) Complementary angle of CDE = 90º – (65 – 3x)º = (25 + 3x)º

(b) Reflex angle BCD = 180º – (12 + x)º + 180º – (65 – 3x)º = (283 + 2x)º