Hello so I had a question and the equation is 1/2 (10)(10)sin 60= but i got -15 but the awnser key says its 43.3 so im confused
not sure how you got a NEATIVE answer!
sin60 * 10 will give you the height of the triangle = 5 sqrt 3
then area = 1/2 10 * 5 sqrt 3 = 25 sqrt 3 = 43.3 cm 2
