Unit 5, Lesson 3# The Area of Acute Triangles Using Height and Base

EngageNY 45 min(s)Support for English Language Learners

Students show the area formula for a triangular region by decomposing a triangle into right triangles. For a given triangle, the height of the triangle is the length of the altitude. Students understand that the height of the triangle is the perpendicular segment from a vertex of a triangle to the line containing the opposite side. Students understand that any side of a triangle can be considered a base and that the choice of base determines the height.