- A15
- B2.4
- C9
- D12
Step-by-Step Solution
Use the part-to-whole form of BPT: , i.e. . So cm. (Check: and .) The value 2.4 comes from inverting the proportion; 9 answers with , the part rather than the whole side; 12 copies .
Answer: A) 15
A straight line parallel to BC meets side AB of triangle ABC at D and side AC at E. Given AC = 30 cm, AE = 12 cm and AD = 6 cm, find AB (in cm).
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