Compute 4

Compute the exact value of the area of the triangle with sides 14 mi, 12 mi, and 12 mi long.

Correct result:

S =  68.2276 mi2

Solution:

a=14 mi b=12 mi c=12 mi  s=a+b+c2=14+12+122=19 mi  S=s⋅ (s−a)⋅ (s−b)⋅ (s−c)=19⋅ (19−14)⋅ (19−12)⋅ (19−12)=7 95=68.2276 mi2

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Papá
It made it easier to explain to my 6th grader.  I'm hoping he continues using your service it's explainable and understandable for kids.

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