Similar Triangles and Right

A ramp is used to unload trucks. How high is the end of 25-foot ramp when it forms an angle of 30 degrees with the ground? What if the angle is 450?

• 12 1/2 feet

• 12 1/2 squre root of 3 feet

• 50 feet

• 13 feet

A boy whose height is 5 ft. casts a shadow of 4 ft. He is standing beside the

flagpole that casts a shadow of 7 ft. How tall is the flagpole?

• 8 ft.

• 8 1/4 ft.

• 8 1/2 ft.

• 8 3/4 ft.

A boy 150 cm casts a shadow that is 90 cm long. The end of his shadow

coincides with the end of the shadow cast by a lamp post 330 cm from the boy.

How high is the lamp post?

• 500 cm

• 600 cm

• 700 cm

• 800 cm

A giraffe is 210 in tall casts a shadow of 135 in. Ana casts a shadow of 45 in.

How tall is Ana?

• 68 inches

• 70 inches

• 72 inches

• 74 inches

• A
• B
• C
• D

List the one word that correctly fills in both blanks in the proportion above regarding similar right triangles.

• 6√4
• 2
• 4√6
• √6

x=?

• 3

• 5

• 4

• 6

List the one word that correctly fills in both blanks in the proportion above regarding similar right triangles.

Find the value of y.

• 6

• 108

• 3