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Anastaziya [24]
3 years ago
7

The area and the circumference of a circle whit radius 7 feet.

Mathematics
1 answer:
slega [8]3 years ago
5 0

Answer:

Area= 49 ft  

π × 7 2 π × 49

49 π  feet

Circumference = 14 ft

2× π × 7

14 π  feet

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Step-by-step explanation:

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Given that triangle ABC is right angle triangle. CD is altitude such that AD=BC

ABC is a right angle triangle so apply Pythogorean theorem

AC^{2} + BC^{2} = AB^{2}

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AC^{2} + AD^{2} = 3^{2}      (Given that AB=3)

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AD^{2}+(\sqrt{2})^2= AC^{2}

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