SOLUTION: Find the area of the triangle whose sides have the given lengths. (Round your answer to two decimal places.) a = 3, b = 7, c = 7

Algebra ->  Pythagorean-theorem -> SOLUTION: Find the area of the triangle whose sides have the given lengths. (Round your answer to two decimal places.) a = 3, b = 7, c = 7       Log On


   

Question 411049: Find the area of the triangle whose sides have the given lengths. (Round your answer to two decimal places.)
a = 3, b = 7, c = 7

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Use Heron's formula:
Area+=+sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29 where s = 1/2 the perimeter = 17/2
Area+=+sqrt%288.5%2A5.5%2A1.5%2A1.5%29
Area =~ 10.26 sq units