Scale Factor Practice

Master scale factor and proportions with fun practice problems!

What is the definition of scale factor? Scale Factor: the ratio of the length of line segments of a figure to the corresponding line segments of another figure. Scale factors less than 1 reduce figures, scale factors equal to 1 result in a congruent figure, and scale factors greater than 1 enlarge figures. Proportional Practice Solve for x 918 1 2 63 The ratio of Tom’s age to Mary’s is 3:4. If Tom is 15, how old is Mary? 15 20 25 10 Anna is a sales person who has jobs this week in cities within North Carolina and South Carolina. On a map, these two cities are 50 centimeters apart. The map uses a scale of 2 centimeters = 4 kilometers. What is the actual distance between these cities? 50 kilometers 100 kilometers 150 kilometers 200 kiometers Max makes a scale drawing of distance between Salt Lake City and Arizona. The distance between Salt Lake City and Arizona is 21 cm. If each 7 cm on the scale drawing equals 250 kilometers, how far apart are the Salt Lake City and Arizona? Write the equation and answer below. Watch the video!