Scaling Solids

Find the surface area of the larger solid.

Enter a number only.

What is the surface area of the larger solid?

• 50 ft²

• 45 ft²

• 81 ft²

• 225 ft²

What will the surface area of the smaller cone be? Enter a number only.

Find the surface area of the larger pyramid.

Enter a number only.

What is the area of the base in square units?

• 324

• 514.5

• 187.5

• 1500

• 768

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Kiran probably multiplied the volume by the ​ (a)   . He needs to ​ (b)   by the ​ (c)   of the scale factor.

​ (d)   times 10 = ​ (e)   cubic inches

• scale factor

• cube

• 3.5 cubed

• 428.75

• multiply

When you ​ (a)   the dimensions of a rectangular prism, the ​ (b)   increases by a factor of 4. This is because the surface area is proportional to ​ (c)   of the dimensions. If the original box requires 2 ounces of paint, the new box will need ​ (d)   ounces of paint.

• surface area

• the square

• double