7. Pada ∆LKS berikut ini, panjang rusuk LK sama Jengan...cm^ 2

[tex] \sf \: {lk}^{2} = \sqrt{ {ls}^{2} + {sk}^{2} } [/tex]
[tex] \sf = \sqrt{ {8}^{2} + {6}^{2} } [/tex]
[tex] \sf = \sqrt{( 8 \times 8) + (6 \times 6)} [/tex]
[tex] \sf = \sqrt{64 + 36} [/tex]
[tex] \sf = \sqrt{100}[/tex]
[tex] \sf = 10[/tex]
Opsi => B => 10 Cm²
[answer.2.content]