Area of Oblique Triangle

Math - Grade 9 / Geometry

Sample Question

Which of the following can be used to calculate the area of a triangle given two sides and the included angle as shown in the figure below:

  • A= (1/2) bc sinA
  • A= (1/2) bc cos A
  • A= bc tan A
  • A= (1/2)(a- b)sin A

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Quipper School Philippines Curriculum

Math - Grade 9