a=10
c=13
h - wysokość
Obliczam h²
[tex]h^2+(\frac{1}{2}a)^2=c^2\\\\h^2+5^2=13^2\\\\h^2+25=169\\\\h^2=169-25\\\\h^2=144[/tex]
Obliczam |CD|
[tex]h^2+(5-3)^2=|CD|^2\\\\|CD|^2=144+2^2\\\\|CD|^2=144+4\\\\|CD|^2=148\\\\|CD|=\sqrt{148}\\\\|CD|=2\sqrt{37}[/tex]
