SOLUTION: Give the applicable formula or law to use in each siutation. (a) If you know the three sides of a triangle, how can you find its area? (b) If you are given two sides of a triangl

Algebra ->  Trigonometry-basics -> SOLUTION: Give the applicable formula or law to use in each siutation. (a) If you know the three sides of a triangle, how can you find its area? (b) If you are given two sides of a triangl      Log On


   

Question 552331: Give the applicable formula or law to use in each siutation.
(a) If you know the three sides of a triangle, how can you find its area?
(b) If you are given two sides of a triangle and the included angle, how would you find the third side?
Someone please help me, I am so confused and need explanations. Thanks.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
a) Heron's formula

b) The area is equal to the product of the two sides and the sine of the included angle.