Question

What is the area of a triangle with a=2, b=7, and c=8?

Answer 1

c.

6.4 units

Explanation:

Answer 2

6.44

Explanation:

A=1/ 4 divided by﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4 =1/ 4· divided by﹣24+2·(2·7)2+2·(2·8)2﹣74+2·(7·8)2﹣84 ≈6.4372

Sorry if it's a little complicated but that's how I learned it