Question

Qno1 :- find the surface area of a cube whose edge is 3.5m? ​

Answer 1

Answer:

$\huge \mathcal{ \fcolorbox{aqua}{azure}{ \red{ Answer}}}$

Given the side of the cube =3.5cm

lateral surface of the cube 4×side

2

==4×(3.5)

2

=4×12.5

=49cm

2

we get, lateral surface area is 49cm

2

.

Answer 2

Edge =3.5m

Surface area of cube = 6a²

= 6 × (3.5)²

= 6 × 12.25

= 73.5 m²

surface area of a cube whose edge is 3.5m is 73.5m².