Question

How is finding the surface area of a three-dimensional figure related to the net of the figure?

(A)The surface area is equal to the number of sides of its two-dimensional net.

(B)The surface area is equal to the area of its two-dimensional net.

(C)The surface area is equal to the volume of the figure with the same net.

(D)The surface area is equal to half the surface area of its two-dimensional net.

Answer 1

According to me, I think it will be option (b) The surface area is equal to the area of its two-dimensional net.

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Answer 2

(B)The surface area is equal to the area of its two-dimensional net.

Explanation:

The surface area of a 3D object is the sum of the areas of the various sides that make up this figure. Essentially, if you unroll the object into its 2D net, then the area that this net covers will be the surface area.

Think about a cube, for example. It has 6 square sides, so its surface area is the sum of the areas of those squares. If we take the net of the cube, it's also 6 squares, and if we sum those together, we'll get the same answer.

Thus, the answer is B.