Penjelasan dengan langkah-langkah:

10.diketahui:

S = 18 cm

ditanya:V....?

dijawab:

V = s × s × s

=18 × 18 × 18

=324 × 18

=5.832 Cm³= {opsi D}

12.diketahui:

L.a=17 cm

Tinggi ∆ =14 cm

T.prisma =22 cm

ditanya:V.....?

dijawab:

V =(1/2 × L.a × tinggi ∆ )×T.prisma

=(1/2 × 17 × 14 cm ) × 22 cm

=(1/2 × 238) × 22 cm

=119 × 22 =2.618 Cm³{opsi A}

14.diketahui:

R =21 cm

T =40 cm

π =22/7 cm

ditanya:V.....?

dijawab:

V = π × r × r × t

=22/7 × 21 × 21 × 40

=22 × 3 × 21 × 40

= 66 × 21 × 40

=1.386 × 40 =55.440{opsi A}

#good luck^-^