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# trigonometry

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What is the formula to find the area of a triangle when given 1 angle and 2 sides?

Guest May 1, 2017
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#1
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Is the angle that you are given between the two given sides, or is the angle not "included"?

hectictar  May 1, 2017
#2
+6928
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If it is included angle:

a, b are the given sides, theta is the included angle

Area = $$\dfrac{ab\sin \theta}{2}$$

MaxWong  May 1, 2017

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