Question

Exercise 2
Direction: Write the letter of the correct answer on the space provided.
1. One face of a cube has an area of 4cm? What is its surface area?
a. 4cm2
C. 16cm2
b. 6cm2
d. 24cm2​

Answer 1

☆ Answer

The surface area of a cube which has a side of 4cm is 6*4^2=6*16 cm^2.

Now, when the cube is cut into the smaller cubes with side of 1cm we'll get 4*4*4=64 little cubes and each will have the surface area equal to 6*1^2=6 cm^2,

so total surface are of these 64 little cubes will be 6*64 cm^2.

Answer 2

Answer:

(d) 24 cm square

Step-by-step explanation:

Since, a cube has 6 equal faces.

And, Area of one face = 4 cm square

So, Area of 6 faces = 4 x 6 = 24 cm square.