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tatuchka [14]
4 years ago
5

Please help!!!!! A circular patio needs to be painted. It's radius is 94 centimeters. What is the area of the patio ? Round to t

he nearest centimeter
A)6,627 square centimeters
B) 6,936 square centimeters
C) 27,745 square centimeters
D) none
Mathematics
1 answer:
chubhunter [2.5K]4 years ago
5 0
Area = pi*r^2

A = pi(94)^2

A = pi(8836)

A = 27,759.112687119

A = 27,759

Answer: Choice D
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Answer: -3

Step-by-step explanation:

Since we are given the value of r, we can plug that value into the expression and solve.

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3 years ago
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Part A:

3 \sqrt{7} =6\left( \frac{ \sqrt{7} }{2} \right) \\  \\ =6\left( \frac{ \sqrt{7} }{3} \cdot \frac{3}{ \sqrt{2} } \right) \\  \\ =6\left( \frac{ \frac{ \sqrt{7} }{3} }{ \frac{ \sqrt{2} }{3} } \right)=-6\left( \frac{ \frac{ \sqrt{7} }{3} }{ -\frac{ \sqrt{2} }{3} } \right) \\  \\ =-6\left( \frac{y}{x} \right)=-6\tan\theta

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Part B:

- \frac{ \sqrt{7} }{2} =- \frac{ \sqrt{7} }{3} \cdot \frac{3}{ \sqrt{2} }  \\ \\ =- \frac{ \frac{ \sqrt{7} }{3} }{ \frac{ \sqrt{2} }{3} } = \frac{ \frac{ \sqrt{7} }{3} }{ -\frac{ \sqrt{2} }{3} } = \frac{y}{x}  \\  \\ =\tan\theta

Therefore, \tan\theta=- \frac{ \sqrt{7} }{2}
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