Geometry Proportions

Given the choice between doing an oral and a written report, 18 of the 28 students chose to do an oral report. Find the ratio of written to oral reports.

• 5 : 9

• 9 : 5

• 9 : 14

• 14 : 9

A model of a lighthouse has diameter 8 inches and height 18 inches. If the actual diameter of the lighthouse is 20 feet, find its actual height.

• 30 ft

• 35 ft

• 45 ft

• 50 ft

The three sides of a triangle are in the ratio 2:4:5. If the shortest side of the triangle is 4 meters long, find the perimeter.

• 17 m

• 22 m

• 32 m

• 40 m

Find the polygon that is similar to ABCD.

• 
• 
• 
• 

• 54

• 59

• 67

• 69

Name the theorem or postulate that can be used to prove that these triangles are similar.

• AA Similarity

• SAS Similarity

• SSA Similarity

• SSS Similarity

• 8

• 10

• 11

• 12

Find LM.

• 16

• 17

• 18

• 20

• 71 ft

• 78 ft

• 84 ft

Find CE 

• 25

• 26

• 27

• 28