In chapter nine section two
we learned how to find the area of a triangle.
one divided by two(base)(height) is only for right triangle.
one divided by two(A)(B)(sine angle between) for non-right triangle
example problem
Two sides of a triangle have lengths of eight centimeters and six centimeters. The angle between the two sides measures to 85 degrees. Find the area of the triangle.
First you have to draw your triangle and your triangle is not right so you can have to use the second formula.
A= one/two(A)(B)(sine(theta)
A= one/two(eight)(six)(sine(eighty five)
A= one/two(forty eight)(sine(eighty five)
A= twenty four (sine(eighty five)
A= twenty three. nine centimeters squared
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