HELP ME WITH THIS!!!!!!!!!
1 answer:
Answer:
A ≈ 78.6 ft²
Step-by-step explanation:
Height of an equilateral triangle of side 6
h = √(6² - 3²) = √27
A = 3(½(6)(7)) + (½(6)(√27))
A = 63 + 15.6
A ≈ 78.6 ft²
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