Question

find the TSA and LSA of the cube whose side is 21cm.

Answer 1

total surface area of cube=6a^2

=6×21×21

=2646cm^2

and lateral surface area of cube= 4a^2

=4×21×21

=4×441

=1764cm^2

it may help you. ......

thanks......

Answer 2

Answer:

Hi ,hello

L.S.A of cube=4l^2 so

4×21×21=1764cm^2

Now

T.S.A of cube =6l^2

6×21×21=2646cm^2

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