Jun Ning's answer to :-)'s Secondary 3 E Maths Singapore question.
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a) Use AAS. One pair of angles is given in Q. Angle BAC equal angle ACD (alternate angles). Ratio of AB/AC = AC/CD
b) Ratio 2:3. AD = 7/2 x 3 = 10.5
b) Ratio 2:3. AD = 7/2 x 3 = 10.5
Date Posted:
3 years ago
Wait sorry no need for S, AA will do.
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