1. Lesson 3

1.10. Lesson 3 Summary

Mathematics 20-3 Module 4

Module 4: The Right Kind Of Triangles

 

This is a photo of a surveyor with a transit.

David Hiller/Photodisc/Thinkstock

Lesson 3 Summary

 

The astrolabe used by Samuel de Champlain and the transit used by surveyors make use of very similar mathematics. Both use trigonometry and right angles to find locations.

 

People who work in other trades use trigonometry as well. These trades include electricians, road builders, carpenters, and plumbers. Check to see what type of mathematics is used in your chosen occupation.

 

In this lesson you reviewed right-triangle trigonometry and its application. One application included the slope—sometimes called gradient, pitch, or grade depending on the person applying slope on the job.