Question

1) Lateral surface of a cube with edge 20 cm is ___.
2) Total surface area of a cube with edge 5m is ___.
3) Volume of a cube with edge 5 dm is __.
4) Area of a square field of perimeter 800 m is ---- hectares.

Answer 1

Step-by-step explanation:

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

Volume of a cube = s^3

=5^3

=125

T.S.A= 6*side*side

=6*5*5=150sq.cm

A=40000

A=40000Perimeter

A=40000PerimeterUnit Conversion:

A=40000PerimeterUnit Conversion:Using the formula

A=a^2

P=4a

A=1/16 p^2

=1/16 . 800^2

=40000