SOLUTION: A triangular parcel of land has the border lengths of {{{ 55 }}} meters, {{{ 85 }}} meters, and {{{ 100 }}} meters. What's the area of this parcel of land? Thank you.

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Question 1075690: A triangular parcel of land has the border lengths of +55+ meters, +85+ meters, and +100+ meters. What's the area of this parcel of land? Thank you.
Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
.
Use the Heron's formula.


See the lesson
    - Proof of the Heron's formula for the area of a triangle
    - One more proof of the Heron's formula for the area of a triangle
in this site.


Also,  you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lessons are the part if this textbook under the topic "Area of triangles".