Question

Here is a picture of a cube and the net for this cube.

What is the surface area of this cube?



A.
1,350 mm2

B.
450 mm2

C.
225 mm2

D.
90 mm2

Answer 1

The answer is A. 1350 because a cube has 6 squares and each side length of the square is 15 and the area of one square is 15 x 15 = 225 and as said, there's 6 squares so multiply 225 x 6 = 1350. Hope this helped! :)

Answer 2

Option (A) 1,350 mm² is the answer.

Explanation:

In this question we have been given a picture of cube and net for this cube.

We have to find the surface area of the cube.

Surface area of cube = surface area of net

= 6 (surface area of one square) × (number of squares)

= 6 (15)² ⇒ (since one side of square = 15 mm )

= 6 (225)

= 1350 mm²

Option (A) 1,350 mm² is the answer.