1)
2) The area is
3) , where
Ok, here's some problems I hope to have solved...
1. Given triangle ABC with a=12, b=10, and c=8, find the angles in degrees and minutes.
2. Find the area of triangle ABC if a=40ft., b=25ft., and angleC=30degrees.
3. A triangle has sides 18, 27, and 36. What's it's area?
That's it for now. Thanks a bunch!
Joanne
Hello, Joanne!
We're expected to know the Law of Cosines and its variations . . .1. Given with:
Find the angles in degrees and minutes.
. .
. .
. .
Area formula: .2. Find the area of
. . One-half the product of two sides times the sine of the included angle.
We can find angle of the triangle (as we did in part 1).3. A triangle has sides 18, 27, and 36. Find its area.
Then use the area formula in part 2.
. .