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Elevation to a Height

Mathematics · Class 10

tan = opposite/adjacent = height/distance. String/ladder as hyp: use sin or cos. 70 deg, string 65 m: height = 65 sin 70.

tan for both legs
elevation from horizontal up
h = d tan theta
keep the ideas separate
Elevation To A Height: tan = opposite/adjacent = height/distance. String/ladder as hyp: use sin or cos. 70 deg, string 65 m
WHAT — ELEVATION TO A HEIGHT: tan = opposite/adjacent = height/distance. String/ladder as hyp: use sin or cos. 70 deg, string 65 m
HOW — Use the idea: Identify what is given, select this topic's rule or evidence, apply it one step at a time, and check
CORE UNDERSTANDING: tan = opposite/adjacent = height/distance. String/ladder as hyp: use sin or cos. 70 deg, string 65 m

Right triangle — Elevation to a Height — original sketch for this lesson (not copied from a textbook).