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OpenStudy (anonymous):
Find the area.
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OpenStudy (anonymous):
OpenStudy (saifoo.khan):
Find the hypotenuse first.
OpenStudy (anonymous):
area of triangle = 1/2*base * height =1/2*4*6.9 =13.8
OpenStudy (saifoo.khan):
Then using cos rule, the the angle. finally use 0.5(a)(b)sin C to find the area of triangle.
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