Tolong yang nomor 4 ya...

AC =
[tex] \sqrt{ {8}^{2} + {6}^{2} } \\ = \sqrt{64 + 36} \\ = \sqrt{100} \\ = 10[/tex]
BI =
[tex] \sqrt{ {18}^{2} + {8}^{2} } \\ = \sqrt{324 + 64} \\ = \sqrt{388} \\ = 2 \sqrt{97} [/tex]
EG =
[tex] \sqrt{ {8}^{2} + {4}^{2} } \\ = \sqrt{64 + 16} \\ = \sqrt{80} [/tex]
JL =
[tex] \sqrt{ {8}^{2} + {10}^{2} } \\ = \sqrt{64 + 100} \\ = \sqrt{164} [/tex]
DI =
[tex] \sqrt{ {15}^{2} + {6}^{2} } \\ = \sqrt{225 + 36} \\ = \sqrt{261} [/tex]