Question

help me please

Answer 1

This is just simple Pythagorean theorem: \[a^{2}=b^{2}=c^{2}\] just rearrange, substitute known values and solve.

Answer 2

use pythagorean theorem

Answer 3

\[BC=\sqrt{35^{2}+39^{2}}\]

Answer 4

\[a^2+b^2=c^2\]
\[35^2+29^2=c^2\]
\[1225+1521=c^2\]
\[2746=c^2\]
\[\sqrt{2746}=c\]
c=52.40 (approx.)