Geometry Module 2, Topic E, Lesson 31 | EngageNY

Geometry Module 2, Topic E, Lesson 31

Student Taking Notes

Student Outcomes

  • Students prove that the area of a triangle is one-half times the product of two side lengths times the sine of the included angle and solve problems using this formula.
  • Students find the area of an isosceles triangle given the base length and the measure of one angle.

Downloadable Resources

Resources may contain links to sites external to the EngageNY.org website. These sites may not be within the jurisdiction of NYSED and in such cases NYSED is not responsible for its content.

Common Core Learning Standards

CCLS State Standard
G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.★
G.SRT.9 (+) Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line...

Curriculum Map