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e-lub [12.9K]
3 years ago
12

HELP ME WITH THIS!!!!!!!!!

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

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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