The perimeter of a cube formula is, Perimeter = 4a where (a= length)
G i v e n space t h a t space p e r i m e t e r space o f space t h e space f a c e space o f space t h e space c u b e space i s space 32 space c m
rightwards double arrow 4 a equals 32 space c m
rightwards double arrow a equals 32 over 4
rightwards double arrow a equals space 8 space c m
W e space k n o w space t h a t space s u r f a c e space a r e a space o f space a space c u b e space w i t h space s i d e space apostrophe a apostrophe space equals 6 a squared
T h u s comma space S u r f a c e space a r e a equals 6 cross times 8 squared equals 6 cross times 64 equals 384 space c m squared
W e space k n o w space t h a t space t h e space v o l u m e space o f space a space c u b e space w i t h space s i d e space apostrophe a apostrophe equals a cubed
T h u s comma space v o l u m e equals 8 cubed equals 512 space c m cubed
Answers & Comments
The perimeter of a cube formula is, Perimeter = 4a where (a= length)
G i v e n space t h a t space p e r i m e t e r space o f space t h e space f a c e space o f space t h e space c u b e space i s space 32 space c m
rightwards double arrow 4 a equals 32 space c m
rightwards double arrow a equals 32 over 4
rightwards double arrow a equals space 8 space c m
W e space k n o w space t h a t space s u r f a c e space a r e a space o f space a space c u b e space w i t h space s i d e space apostrophe a apostrophe space equals 6 a squared
T h u s comma space S u r f a c e space a r e a equals 6 cross times 8 squared equals 6 cross times 64 equals 384 space c m squared
W e space k n o w space t h a t space t h e space v o l u m e space o f space a space c u b e space w i t h space s i d e space apostrophe a apostrophe equals a cubed
T h u s comma space v o l u m e equals 8 cubed equals 512 space c m cubed
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