two sides of a triangle have lengths of 14 and 19 inches. Their included angle measures 82 degrees. Find the area of the triangle.

Question

nali · Answer

use the Pythagorean theory 

 a^2 + b^2 = c^2

anonymous · Answer

how are you supposed to use pythagorean? It's not a right triangle

nali · Answer

can u plz draw a picture of the problem

anonymous · Answer

|dw:1337918307061:dw| To be safe don't assume it's a right triangle

nali · Answer

in order to find the third side use the formula and let a= 14 and b = 19

$$ c^{2}= a^{2}+ b^{2} - 2ab$$ cos C

          = \[14^{2}+ 19^{2} - 2(14)(19) cos 82

          = 196       +  361   - (532) (.9497)

          =  51.7596

 the answer is about 52

nali · Answer

sorry the cos C is supposed to be next to the rest of the equation

nali · Answer

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