Question

find the lateral surface area and total surface area of a cube of edge 20m.

Answer 1

CSA = $4a {}^{2}$ Where a=20mSo CSA = 1600mSq.TSA = 6(a) ^2 = 2400mSq.

Answer 2

Hello sankar ....

since the edge of the cube 20 cm

then the total surface area of the cube is

6l^2 = 6 × 400 = 2400 cm square

and lateral surface area of the cube is

4l^2 = 4 × 400 = 1600 cm square.

hope it helps!!!!!!!