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# 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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##### Alisa L.

University of Texas at Austin

##### Martha R.

Michigan State University

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### Video Transcript

angle. We're gonna use trigonometry functions, but we're gonna find the area of a triangle Who in this triangle Angle B is 85 degrees Side A is 50 ft and side see is 23 ft. Now, to find the area using trigonometry functions, we're gonna look at which angle were given. Well, we're given Angle Bay, So because of that, we're gonna use the formula. Area equals one half of Saad A and time see sign of the angle were given which in this case, is gonna be angle B. So we're gonna use that formula to find the area. So we're gonna have half of inside a S 50 ft side, see us 23 ft. Sign and angle B. It's 85 degrees. So when I multiply 50 times 23 I'm going to get 1150 in sign of 85 degrees and half of 100,150. It's 575 Tom's sign of 85 degrees. We're gonna go ahead and proximate to 0.996 which when I do that, that's going to give me an approximate value off 572 0.8 feet squared and its feet square because we are still finding the area of the triangle

Liberty University

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Graphing Trigonometry Functions

##### Alisa L.

University of Texas at Austin

##### Martha R.

Michigan State University