Question
Find the volume, lateral surface area and the total surface area of a cube whose edges measures:
8dm, 5cm.
8dm, 5cm.
✓
Answer
Edge of cube $( a )=8 dm 5 cm=85 cm$.
a. Volume $=a^3=(85)^3 cm^3$
$=85 \times 85 \times 85=614125 cm^3$
a. Lateral surface area $=4 a ^2$
$=4 \times(85)^2 cm^2$
$=4 \times 85 \times 85=28900 cm^2$
c. Total surface area $=6 a ^2=6(85)^2 cm^2$
$=6 \times 85 \times 85=43350 cm^2$
a. Volume $=a^3=(85)^3 cm^3$
$=85 \times 85 \times 85=614125 cm^3$
a. Lateral surface area $=4 a ^2$
$=4 \times(85)^2 cm^2$
$=4 \times 85 \times 85=28900 cm^2$
c. Total surface area $=6 a ^2=6(85)^2 cm^2$
$=6 \times 85 \times 85=43350 cm^2$
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