Lesson: Finding the Area of Triangle Using Trigonometry

In this lesson, we will learn that the area of a triangle can be evaluated using the lengths of two sides and the sine of the included angle.

Video

14:12

Q1:

is a triangle, where , , and . Find the area of , giving your answer to three decimal places.

Q2:

Find the area of the figure below giving the answer to three decimal places.

Q3:

is a triangle where , , and . Find the area of the triangle giving the answer to two decimal places.

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