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SMK Teknologi dan Rekayasa

Soal 66 Volume Bangun Ruang


Sebuah\ prisma\ tegak\ ABC.DEF\ dengan\ alas\ segitiga\ siku-siku\ di\ titik\ B.\\Jika\ panjang\ AB=5\ cm,\ BC=12\ cm,\ AC=13\ cm,\ dan\ AD=10\ cm,\\volume\ prisma\ tersebut\ adalah\ ....\\a.\ \ 300\ cm^{3}\ \ \ \ \ \ \ \ \ \ b.\ \ 325\ cm^{3}\ \ \ \ \ \ \ \ \ \ c.\ \ 600\ cm^{3}\ \ \ \ \ \ \ \ \ \ d.\ \ 650\ cm^{3}\ \ \ \ \ \ \ \ \ \ e.\ \ 780\ cm^{3}
Jawaban: a


\begin{array}{rcl}Volume\ prisma&=&luas\ alas\ \times\ tinggi\\\\&=&\frac{1}{2}\times AB\times BC\times AD\\\\&=&\frac{1}{2}\times 5\times 12\times 10\\\\&=&300\ cm^{3}\end{array}

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