Question

answer fastt!! with explanation
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Answer 1

Answer:

using Pythagoras theorem

1) 5m

Answer 2

$13 {}^{2} = 12 {}^{2} + x {}^{2}$

$169 - 144 = x {}^{2}$

$25 = x {}^{2}$

$5 = x$

ANSWER IS 5M