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# Find the circumference and area of a circle whose equation is (x - 2)^2 + (y + 4)^2 = 150?

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• Find the circumference and area of a circle whose equation is (x - 2)^2 + (y + 4)^2 = 150?  ## Answers

Answer #1 | 16/05 2017 03:44 I was gonna answer but ? Got it..
Positive: 53.571428571429 %
Answer #2 | 16/05 2017 04:04 (x − 2)^2 + (y + 4)^2 = 150 Center Point and Radius Keep in mind that the factored form of a circle equation reveals the center point (h, k) and the radius. In the above example, (2, -4) is the center point and the radius is √150 C = 2 pi r = 76.95298980971184 A = pi r^2 = = 471.23889803846896
Positive: 51.724137931034 %
Answer #3 | 16/05 2017 03:39 Use Mathway
Positive: 51.724137931034 %
Answer #4 | 16/05 2017 04:18 The general form (x-h)² + (y-k)² = r² r² = 150 Area =
Positive: 51.851851851852 %
Answer #5 | 16/05 2017 03:46 r^2 = 150 area = πr^2 = 150π circumference = 2πr = 2π √150 = 2π x 5√6 = (10√6)π
Positive: 50 %
Answer #6 | 16/05 2017 03:42 r² = 150 r = 5√6 A = πr² = 150π C = 2πr = 10√6π
Positive: 48.148148148148 %
Answer #7 | 16/05 2017 03:45 R^2 = 150 R = sqrt(150) R = 12.25 Circumference =========== C = 2*pi*R C = 2 * 3.14 * 12.25 C = 76.914 Area === Area = pi * r^2 Area = 3.14 * 12.25^2 Area = 3.14 * 150 Area = 471 square units.
Positive: 46.428571428571 %

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