SOLUTION: The sides of an isosceles triangle are 23,23, and 22cm long. What is the area of the triangle? Do not round any intermediate computations, and round your answer to the nearest t

Algebra ->  Triangles -> SOLUTION: The sides of an isosceles triangle are 23,23, and 22cm long. What is the area of the triangle? Do not round any intermediate computations, and round your answer to the nearest t      Log On


   

Question 631648: The sides of an isosceles triangle are 23,23, and 22cm long. What is the area of the triangle?
Do not round any intermediate computations, and round your answer to the nearest tenth.
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Use Heron's Formula
A+=+sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29 where s+=+%28a%2Bb%2Bc%29%2F2, semi-perimeter
s+=+%2823+%2B+23+%2B+22%29%2F2+=+34
therefore A+=+sqrt%2834%2834-23%29%2834-23%29%2834-22%29%29
A+=+highlight%28222.2+%29 cm%5E2