Scale Factor
Circumference
Area
Misc.
Either or
100
A square has a side length of 6 inches. It is enlarged and the new side length is 18 inches. What is the scale factor?
What is 3?
100
The circumference of a tire is 119.32 inches. What is the radius?
What is 19 inches?
100
The circle has a diameter of 16 inches. Find the area of the circle leaving it in terms of
pi
16pi
100
Triangle ABC and DEF are similar. What is the value of x?
what is 10?
100
The amount of glass in a circular window.
A. Area
B. Circumference
What is area?
200
The distance from the school to the ball field is 10 km. If the scale that is used on the map is 4 cm to 5 km. What is the distance on the map?
What is 8 cm?
200
Give me the formulas for circumference in terms of diameter?
pid
200
What is the area of a circle with a radius of 2.8 cm? (Round to the nearest tenth)
What is 24.6 cm2
200
Kim drew a map of the Mississippi River using the scale 5 centimeters equals 120 miles. The actual length of the Mississippi River is 2,320 miles. Approximately what is the length in centimeters of the Mississippi River on the map? (Round to the nearest whole number)
What is 97cm?
200
Is the radius 4inches or 5 inches?
The circumference is 31.4 inches.
What is 5 inches
300
Troy made a scale drawing of the Statue of Liberty which has an actual height of 305 feet. He decides to use the scale of 1 inches = 25 feet. What is the height of Troy's drawing?
What is 12.2 feet?
300
What is the radius of a circle with a circumference of 125 cm. Round to the nearest whole number.
What is 20 cm?
300
What is the area of a circle with a diameter of 24inches? (Round to the nearest whole number)
What is 452 in2?
300
Triangle ABC and triangle DEF are similar. Find the value of x. 
What is 16?
300
If the sides of 2 similar figures have a similarity ratio of 3/2 what is the ratio of their area.
A. 9/4
B. 3/2
A.
400
The photo is being enlarged to form a 24 by 30-inch print. What scale factor will be used to enlarge it?
What is a scale factor of 6?
400
A hula hoop measures 14 inches from the center to the outside. What is the distance around the hula hoop? (Use 3.14 for pi )
What is 87.92 inches?
400
What is the diameter of a circle with an area of 50.24m2 ?
What is 4m?
400
What is 35 inches2 ?
400
If the angles of one of the two similar triangles are 30, 60 and 90 degrees. What are the angles of the other triangle?
A. There is not enough information
B. 30, 60 and 90
C. 60, 120, 180
What is 30, 60, 90. if the triangles are congruent the angles remain the same just the side lengths change.
500
If the measurements of the sides of a rectangle are 2m by 8m and the rectangle is increased by a scale factor of 7. What would the perimeter of the rectangle be?
What is 140 m?
500
What is the length of a semi circle curved part only with a radius of 8 inches. (Semi circle is half a circle) Round to the nearest tenth.
What is 25.1 inches
500
A circular frisbee has a circumference of 15.2 inches. What is the area of the frisbee? (Round to nearest whole number)
What is 18 inches2?
500
Two boxes of tissues are similar in shape and size. The larger tissue box is dilated by a scale factor of 0.5 to create the smaller tissue box. What are the measurements of the smaller tissue box?
What is X= 4.5 inches, y = 8 inches and z =3.75 inches?
500
If the sides of two similar figures have a similar ration of 5/3 what is the ratio of the perimeters.
A. 25/9
B. 5/3
What is B.
5/3