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vampirchik [111]
3 years ago
9

A high school track is shaped as a rectangle with a half circle on either side. I really need help!!

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
3 0

Answer:

A

Step-by-step explanation:

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12). By applying Pythagoras theorem in the given right triangle,

      Hypotenuse² = (Leg 1)² + (Leg 2)²

      x² = 7² + 7²

      x² = 2(7)²

      x = \sqrt{2(7)^{2} }

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13). By sine rule,

      sin(60)° = \frac{\text{Opposite side}}{\text{Hypotenuse}}

      \frac{\sqrt{3}}{2}=\frac{9\sqrt{3} }{y}

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      By cosine rule,

      cos(60)° = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

      \frac{1}{2}=\frac{x}{y}

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14). By applying Pythagoras theorem in the given right triangle,

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