The top questions on those 2 pages please with explanation!

Top question on the first page.

Ans: Dice net D

Explanation:

Since the opposite sides needs to sum to 7, the net requires the opposite faces to add up to 7.

In net D, notice the side with 4 dots. You need the opposite side of 4, so you go up by two and the side opposite to 4 is 3 dots.

4 + 3 = 7

The same thing goes for side 2. Go up by two faces and you see the 5 dots side.

2 + 5 = 7

1 dot side and 6 dot side add up to 7.

This net is proven to have opposite sides to sum up to 7.

Top question on the second page.

Ans: 18 edges

The original edges of a cube is 12 but since he cut two corners, it generated 3 edges per cut.

So,

12 + 2(3)

12 + 6

= 18

idk

step-by-step explanation: