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26 September, 22:22

5. Find the area of an equilateral triangle with radius 8 m. Leave your answer in simplest radical form.

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  1. 26 September, 22:45
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    Radius, r=8√3 m

    Height of triangle, h=2r ⇒ 16 √3 m

    Side of the triangle, a=16√3/sin60 ⇒ 32 m

    Area of the triangle,

    A = √3/4 (a ²)

    A = √3/4 (32²)

    A = 443.4 m²
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