[tex] \sqrt{5 {}^{2} } - \frac{((14 - 6)}{2 {}^{2} )} [/tex]
[tex] = \sqrt{25 - 16} [/tex]
[tex] = \sqrt{9} [/tex]
[tex] = 3cm[/tex]
[tex] = \frac{1}{2} (14 + 6) \times 3[/tex]
[tex] = \frac{1}{2} \times 20 \times 3[/tex]
[tex] = 30cm[/tex]
[tex] = 30 \times 15[/tex]
[tex] = 450cm {}^{3} [/tex]
[tex]luas \: permukaan[/tex]
[tex] = 2 \times luas \: alas \: + keliling \times tinggi[/tex]
[tex] = 2 \times 30 + (6 + 5 + 5 + 14) \times 15[/tex]
[tex] = 2 \times 30 + 30 \times 15[/tex]
[tex] = 60 + 450[/tex]
[tex] = 610cm {}^{2} [/tex]
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Penyelesaian
Tinggi Trapesium
[tex] \sqrt{5 {}^{2} } - \frac{((14 - 6)}{2 {}^{2} )} [/tex]
[tex] = \sqrt{25 - 16} [/tex]
[tex] = \sqrt{9} [/tex]
[tex] = 3cm[/tex]
Luas alas
[tex] = \frac{1}{2} (14 + 6) \times 3[/tex]
[tex] = \frac{1}{2} \times 20 \times 3[/tex]
[tex] = 30cm[/tex]
Volume Prisma = Luas alas × tinggi
[tex] = 30 \times 15[/tex]
[tex] = 450cm {}^{3} [/tex]
[tex]luas \: permukaan[/tex]
[tex] = 2 \times luas \: alas \: + keliling \times tinggi[/tex]
[tex] = 2 \times 30 + (6 + 5 + 5 + 14) \times 15[/tex]
[tex] = 2 \times 30 + 30 \times 15[/tex]
[tex] = 60 + 450[/tex]
[tex] = 610cm {}^{2} [/tex]