GUIDED PRACTICE Identify the scale factor. 1. 2. Moray Eel Grizzly Bear Model Model 5 Height (in.) 84 6 Length (ft) 3. In a photograph, a sculpture is 4.2 cm tall and 2.5 cm wide. The scale factor is 16. Find the size of the actual sculpture. 3 4. Ms. Jackson is driving from South Bend to Indianapolis. She measures a distance of 4.3 cm between the cities on her Indiana road map. What is the actual distance between the cities if the map scale is 1 cm = 30 mi? INDEPENDENT PRACTICE Identify the scale factor. 5. Eagle Model 6. Dolphin Model Wingspan (in.) 90 6 Length (cm) 260 13 7. On a scale drawing, a tree is 6; inches tall. The scale factor is 20. Find the height of the actual tree. 13 8. Measurement On a road map of Virginia, the distance from Alexandria to Roanoke is 7.6 cm. What is the actual distance between the cities if the map scale is 2 cm = 50 mi? PRACTICE AND PROBLEM SOLVING ce The scale factor of each model is 1:12. Find the missing dimensions. Item Actual Dimensions Model Dimensions 9. Lamp Height: Height: 1; in. 10. Couch Height: 32 in. Height: Length: 69 in. Length: 11 Chair Height: 512 in. Height: 12. A building shaped like a pair of binoculars is a scale model of an actual pair of binoculars. The scale is 9 ft = 1 in. What is the height of the building if the height of the actual binoculars is 5 inches? 13. Critical Thinking A countertop is 18 ft long. How long is it on a scale drawing with the scale 1 in. = 3 yd? 14. Write About It A scale for a scale drawing is 10 cm = 1 mm. Which will be larger, the actual object or the scale drawing? Explain