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Mathematics 9 Online
OpenStudy (anonymous):

Read about Heron's Formula for finding the area of a triangle near the bottom of p. 621 in the Geometry textbook. Make up the lengths of three sides of a triangle and find its area using Heron's formula. On the discussion board, share your example and solution. Discuss Heron's formula compared to other triangle area formulas introduced in this lesson, such as advantages/disadvantages for each and which formula you prefer.

OpenStudy (anonymous):

I just need the first part.

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