Similar Triangles and Direct Measurement

• 20

• 30

• 25

• 23

Question: What is the sum of 105 and 130?

• 205

• 105

• 230

• 135

• 15
• 13
• 11
• 17

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

• x = 30 feet

• x = 50.4 feet

• x = 54 feet

• x = 35 feet

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

• 8 feet

• u = 8

• u = 16.6

• u = 1.5

• u = 6

What is the height of triangle B?

• 3 in.

• 4 in.

• 5 in.

• 6 in.

Are Triangle ABC and Triangle XYZ similar?

• No, corresponding angles are not congruent

• No, corresponding sides are not proportional

• Yes, corresponding angles are congruent

• Yes, corresponding sides are proportional