Imagine cutting this shape into two semi-circles and one rectangle.
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- Each semi-circle has a diameter of 36 meters
- The radius would be <em>(36/2) = </em>18 meters.
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<em>We know the area of a whole circle which is π</em><em />
- The formula of area of a semi-circle: 1/2(π
)
<em>because a semi-circle is basically half of the whole circle!</em>
<em />
However, since we have two equal semi-circles...we can just put them together and solve for the whole circle's area.
<em>for reference: </em>
1/2(π) + 1/2(π
) = 2/2(π
) = π
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First, the area of rectangle: length times width = 84 x 36 = 3024 square meters
<em>Anyways, since we have to sub in 3.14 for π </em>
Area of a whole circle: (3.14 x ) = (3.14 x
) = 1017.36 square meters
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3024 + 1017.36 = 4041.36 square meters
<h2>ANSWER: J </h2>