Proportions and Quadrilaterals

Which proportion could be used to solve for x?

• A

• B

• C

• D

Which proportion is true?

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5

• A

• B

• C

• D

• 1=30 ,  2=82,  3=50
• 1=32,  2=98 , 3=50
• 1=30 ,  2=98 , 3=50
• 1=30 , 2=98 , 3=40

Solve for x 

• x = 15

• x = 11

• x = 1/11

• x = 20

Solve for x 

• x = 16

• x = 28

• x = 1/26

• x = 26

Solve for x 

• x = 6

• x = 25

• x = 28

• x = 17

A hiker want to determine the height of a cliff. She has measured her height (5.8ft) and shadow (7ft). She knows the cliff casts a shadow of 50ft. How tall is the cliff?

• 41.4ft

• 31.6ft

• 35.6ft