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2 years ago

11

Find the length in the first quadrant of the circle described by the polar equation r = 2 sin θ + 4 cos θ. The circle is graphed

in the accompanying figure. A. √2 π B. 5 π C. 2 π D. √5 π

1 answer:

Goryan [66]2 years ago

3 0

The rectangular form of the equation is

(x+2)^2 + (y+1)^2 = 5

r = sqrt(5)

then the answer is <span>D. √5 π</span>

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see the attached figure to better understand the problem

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