Answer:
The new surface area will be 
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared
In this problem
The scale factor is 
so
Multiply the scale factor squared by the original surface area to obtain the new surface area

Answer:
C.
Step-by-step explanation:
Yes, because the area of the base of a triangular pyramid with equilateral triangles for faces is the same as the area of each face.
So the surface area is 64 * 4 which is 256
Typically when a polygon has more sides, the angles get smaller.
The nearest whole number would be 93 because you round up if the decimal place is greater than 5 and down if it's less.
Answer: the 1st one.
Step-by-step explanation: becuase today I was helping out a freind with this. So it the first one