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altitude of an equilateral triangle is 6cm. fid the area.
First we need to find side a

To find side a we will use formula:
h = 3?2?a??

After substituting h=6 we have:
6=3?2?a??
a=63?2?
a?2.2053

Now we find area A

To find area A we will use formula:
A=3?4?a2

After substituting a=2.20531042471 we have:
A=3?4?2.205310424712
A=3?4?4.86339406933
A?2.1059


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