Mathematics

Mathematics

Problem

Triangles ABC and ACD share side AC. Triangle ABC is right-angled at B with AB = 9 cm and BC = 12 cm. Triangle ACD is right-angled at C with CD = 8 cm. Find the length of AD. a) 15  cm15\;\text{cm} b) 13  cm13\;\text{cm} c) 12  cm12\;\text{cm} d) 17  cm17\;\text{cm}

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