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Findtheareaofatriangle - Example 3

In mathematics, the area of a triangle is half the base times the height. It is a generalization of the concept of area in Euclidean geometry, where the base and height are the sides of the triangle and where the area is the length of any side times the area of the triangle.

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Video Transcript

angle using trigonometry functions where were given the measurement of one angle in this case were given. The measurement of angle See is 136 degrees, and the two sides that are opposite of that angle where that angle is included. Our angle A. It's 3 m and bees 4 m. When we're using trigonometry functions, we're gonna use area equals one half of a Tom's be sign of the given angle that were given, which is this case is angle see. So for this one, we can start putting in the value, so we're gonna have one half of three Tom's four sign of 136. Of course, we could do a little bit of this in their head. Have three times four is 12 sign of 136 and half a 12. It's six, and we're gonna multiply. That time sign of 136 which is 0.695 and six times 0.695 is approximately 4.2 meters square