#### Answer

A=27$\sqrt 3$$\approx$46.76

#### Work Step by Step

altitude=3a
altitude=9
s=2a$\sqrt 3$
s=6$\sqrt 3$
A=.5(9)(6$\sqrt 3$)
A=27$\sqrt 3$$\approx$46.76

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Brooks Cole

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A=27$\sqrt 3$$\approx$46.76

altitude=3a
altitude=9
s=2a$\sqrt 3$
s=6$\sqrt 3$
A=.5(9)(6$\sqrt 3$)
A=27$\sqrt 3$$\approx$46.76

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