Similar Figures and Area/Surface Area/Volume

If the ratio of 2 round dinner plates is 2 : 5, what is the ratio of their areas?

• 2 : 5

• 1 : 5

• 4 : 10

• 4 : 25

Tags

CCSS.7.G.A.1

If the side lengths are tripled, then which of the following statements about its surface area will be true?

• The new surface area will be 3 times larger

• The new surface area will be 9 times larger

• The new surface area will be 10 times larger

• The new surface area will be 27 times larger

Tags

CCSS.6.G.A.4

If the side lengths are tripled, then which of the following statements about its volume will be true?

• The new volume will be 3 times larger

• The new volume will be 9 times larger

• The new volume will be 10 times larger

• The new volume will be 27 times larger

Tags

CCSS.5.MD.C.5B

CCSS.6.G.A.2

The ratio of the volumes of two spheres is 64:27. What is the ratio of the lengths of the radii of these two spheres?

• 2:1

• 4:3

• 8:5

• 16:9

The area of triangle A is 54 and triangle B is 150. What is the scale factor of A to B? (HINT: Find the simplified area ratio first.)

• 9:25
• 27:75
• 3:5
• 25:9

Tags

CCSS.7.G.A.1