Indirect Measurement Using Similar Triangles

Given the two similar triangles, find the height of the flagpole.

• 15 ft

• 13 ft

• 11 ft

• 17 ft

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

Given the similar triangles, find the height of the statue.

• 20 ft

• 30 ft

• 25 ft

• 23 ft

If a 42.9 ft tall statue casts a 253.1 ft long shadow then how long is the shadow that a 6.2 ft tall man casts?

• 41.7 ft

• 36.6 ft

• 34.6 ft

• 38.8 ft

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

Find the height of the tree.

• 8 ft

• 12 ft

• 13 ft

• 15 ft

Are the triangles similar?

• Yes

• No

Are these triangles similar?

• Yes

• No

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

• 12

• 15

• 18

Are the triangles similar?

• Yes

• No