Question

I need how to solve this type of problems​

Answer 1

Answer:

(i) only one of its face

Answer 2

Answer:

1) 6

2)12

3)8

Step-by-step explanation:

a 3*3 cube consist of 27 small cubes. so when painted.

1

only the centre ones of each side face out and is not shared by any other face. total of 6 sides of cube centre ones, have colour on 1face.

2

the sides touching the centre one share with 2 sides so its 12.(do not double count)

3

all the vertices of cube. so 8

hope it helps.thanks