Similar Triangle Applications Lesson

Similar Triangle Applications Lesson

by Erica Player

Poll

How do you like to work?

• Alone

• with a partner

• with a small group

Poll

Pick 2 ways that you prefer to practice in this class:

• walking around to do problems around the room and hallway

• playing a game, like Jeopardy

• sitting outside to work

• working with a small group and the teacher

• sitting at my desk doing work

Poll

Which of the following is most difficult?

• Dilations

• deciding/checking AA, SSS, SAS

• Proportions (cross-multiply and solve for x)

• Midsegments (how to double or half and solve)

Multiple Choice

We are doing application problems today. See if you can do this one: If the person is 5 feet tall, what is the height of the tree?

• 8 ft

• 12 ft

• 13 ft

• 15 ft

Poll

We are going to test on Friday this week. How do you think you will do on the test?

• Great (A)

• Good (B)

• Okay (C)

• Not Well (F)

Multiple Choice

• 8
• 9.5
• 10
• 10.5

Multiple Choice

• 15
• 13
• 11
• 17

Multiple Choice

• 20
• 28

• 25
• 23

Multiple Choice

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10
• 14

• 15
• 13.5

Multiple Choice

Click on the picture to make it larger. Solve for the height of the tree.

• 10.5 m

• 7.7 m

• 5.2 m

• 8.3 m

Multiple Choice

A power pole 10 m tall casts a shadow 8 meters long, at the same time that a building nearby casts a shadow 14 m long.  How tall is the building?

• 9 m
• 15.2 m
• 12 m
• 17.5 m

Multiple Choice

Solve for the variable x.

• x = 8.5
• x = 10
• x = 1
• x = 2

Multiple Choice

Solve for x 

• x = 6
• x = 25
• x = 28
• x = 17

Multiple Choice

Solve for x

• 1/2
• 25/8
• 11
• 53/4

Multiple Choice

Solve the proportion

• x = 3
• x = -3
• x = 1
• x = -1

Multiple Choice

Solve for b 

• 8
• 17/12
• 4/3
• 1/8