1. ABC is right-angled at A. If AB = 9 cm, AC = 12 cm. then find the length of BC.
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1. ABC is right-angled at A. If AB = 9 cm, AC = 12 cm. then find the length of BC.
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Answer:
solve it using Pythagorean theorem
BC=√(AB^2+AC^2)
BC=15