Problem Title:
Finding the Area of a Triangle Using Side Lengths and Herons Formula
Question Details:
A triangle has side lengths of 7 cm, 9 cm, and 12 cm.
Verify that these side lengths can form a valid triangle using the triangle inequality theorem.
Calculate the semi-perimeter of the triangle.
Use Herons Formula to find the area of the triangle.
Round your final answer to two decimal places.

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