Similar Solids

A cone was dilated by a scale factor of $$2$$ . The preimage’s surface area was $$40\,\text{km}^2$$ . What is the surface area of the dilated figure?

A triangular pyramid was dilated by a scale factor of $$\tfrac{1}{4}$$ . If the volume of the dilated pyramid is $$4\,\text{cm}^3$$ , what was the volume of the preimage?

If the scale factor is 3, which of the following is true about surface area of the image compared to the pre-image?

What number do you have to multiply all the matching sides by in figure A to equal figure B?

Each pair of figures is similar. Use the information given to find the scale factor of the figure on the left to the figure on the right.

Solve the proportion. Type the value only, do not use x =

Solve the given proportion. Type the answer only, do not use x =

Are the following solids similar? If yes, then identify their scale factor.

What is the volume of the larger solid shown ?( round to nearest hundreds, type numerical only)

(a)