A
A scale model of a building is 2 feet tall. If the actual building is 60 feet tall, what is the scale factor?
60 * x = 2
x = 1/30
In triangle ABC, DE || BC. Given that ∠A = 40° and ∠C = 65°, find m∠DEC.
m∠DEC = 115°
Two similar triangles have corresponding sides with lengths 8 cm and 12 cm. If the shorter side of the first triangle is 2 cm, what is the length of the longer side in the second triangle?
Longer side is 3 cm
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
He was bald :)
I am a set of equivalent fractions. What am I?
A Proportion
What can I use to shrink or enlarge an object proportionally?
Scale Factor/Ratio
In a triangle ABC, DE is drawn such that DE || BC. Given that DE = 6 cm, BC = 18 cm, and AD = 4 cm, find the length of AB.
AB = 12 cm
A rectangular picture is enlarged to create a poster. The ratio of the width of the picture to the width of the poster is 2:3. If the width of the picture is 10 cm, find the width of the poster.
The width of the poster is 15 cm
What is the largest side of a triangle with a 90° angle?
Hypotenuse
I turn once, what is out will not get in. I turn again, what is in will not get out. What am I?
A Key/Lock
A 90 meter tall radio tower casts a shadow 30 meters long on the ground. At the same time, a 6 meter flagpole casts a shadow. Determine and state, how far away from the radio tower is the flagpole?
The flagpole is 28 meters away from the radio tower
Mr. Astuto needs to find the height of a tree. The trees shadow is 20.6 ft long. He stands 12.2 ft away from the tree. Mr. Astuto is 5.9 ft tall. State the height of the tree, to the nearest tenth of a foot?
The tree is 14.5 ft tall