Use the image to answer the question.
A simple roadmap focuses on the interstate highways connecting Dallas-Fort Worth, Houston, and San Antonio, forming a triangle. Dallas-Fort Worth is at the top center of the map. The road leading from Dallas-Fort Worth to Houston in a southeasterly direction is labeled Route 45. The road leading from Houston to San Antonio in a westerly direction is labeled Route 10. The road leading from San Antonio to Dallas-Fort Worth in a northeasterly direction is labeled Route 35. A scale shows 80 miles and 80 kilometers.
Employ your understanding of the use of a graphic map scale to determine the approximate distance between San Antonio and Houston within 10 miles (you may want to use a ruler).
Responses
approximately 240 miles
approximately 180 miles
approximately 80 miles
approximately 280 miles
1 answer
We can see that the scale shows 80 miles, and the distance between San Antonio and Houston is about three times the length of the scale.
Therefore, the approximate distance between San Antonio and Houston is approximately 240 miles.