TRIANGLE: http://img172.imageshack.us/img172/1344/trig.jpg
I worked out that it would be 127 cm2
That's exactly the same rule. I've just chosen two different sides of the triangle.
Point is, you need two sides of the triangle and the angle between them.
BTW I always like to keep the solutions exact where possible, hence the square root value rather than the decimal.
I'm not sure why you reposted this question when I already answered it in your other thread: http://www.mathhelpforum.com/math-he...-triangle.html. Did you not see it?
01
Like I said, I've kept the answer exact.
The answer is not .
The answer is .
Notice that when you put it into the calculator you get a decimal answer. This is NOT exact, it is a decimal approximation to .
You have done the right thing but have gotten the decimal answer rather than the exact answer.