Challenge
Mr. Wendell checked Ryan's calculations and directions for the rescue squad and found them to be accurate.
One analogous problem revisits the scene where Paige and Larry estimate the height of the barn to focus on the relationship between elevation and distance in estimating height using principles of similar triangles. Two other problems give students practice applying several methods used for estimating height in The Right Angle to new situations. One problem looks at uses of geometry in construction of buildings and another uses angles and shadows to solve a crime. The last problem provides a scaffolded lesson about similar triangles anchored on estimating height of a flagpole using angles of relection with a mirror.