Question

tell me their answers

Answer 1

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Answer 2

by p.g.t
let the side be y


${37}^{2 } = 12 {}^{2} + y {}^{2}$
${37}^{2} - {12 }^{2} = {y}^{2}$
$(37 + 12)(37 - 12) = {y}^{2}$
$49 \times 25 = {y}^{2}$
1225 = y ^2
√1225 =y
35 = y

triangles are congruent

hence
other side is also 35

35 + 35 = 70 = x