Select the correct answer. Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometric
ally similar. What effect does this have on the surface area of the pyramid? A. The surface area of the pyramid is multiplied by 10. B. The surface area of the pyramid is multiplied by 50. C. The surface area of the pyramid is multiplied by 100. D. The surface area of the pyramid is multiplied by 1,000. E. The effect on the surface area cannot be determined.
Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometrically similar. What effect does this have on the surface area of the pyramid?
ANSWER:
[C] The surface area of the pyramid is multiplied by 100.
EXPLANATION:
When dimension is changed by 10, then surface area is 10 × 10 = 100times changed.
and 
, respectively. The total probability of knocking down at most two is thus 
, or 
.