Mathematics Question and Solution
Sir Mike Ambrose is the author of the question.
Area Green total, exactly in cm² is;
Area triangle with height 24 cm and base 10 cm + Area triangle with height 24 cm and base (24tan15) cm - 2(area triangle with height 10 cm and base (10tan15) cm)
= ½*24*10 + ½*24*24tan15 - 2(½*10*10tan15)
= 120 + 288(2-√(3)) - 100(2-√(3))
= 120 + 576 - 288√(3) - 200 + 100√(3)
= (496 - 188√(3)) cm²
= 4(124-47√(3)) cm²
