Question

11
2. ABC is a triangle, right-angled at
cm and AC = 7cm, find BC.​

Answer 1

Answer:

according to the Pythagorean Theorem,

AC square = BC square + AB SUQARE .

so BC square = AC square - AB square .

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Answer 2

ABC is a right angle triangle by phythagoras Theron AB2=BC2+AC2 112+BC2+72=112+49=BC2