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zuha
 one year ago
A circle has a center at (8,2). The point (3,7) is on the circle. What is the area of the circle to the nearest tenth of a square unit?
zuha
 one year ago
A circle has a center at (8,2). The point (3,7) is on the circle. What is the area of the circle to the nearest tenth of a square unit?

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triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442806632519:dwdw:1442806745433:dw

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442806834199:dw

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1\[d=\sqrt{(x_2x_1)^2+(y_2y_1)^2} \\ d= \sqrt{(83)^2+(27)^2} \\ d= \sqrt{(5)^2+(5)^2} \\ d=~?\]

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1no decimals please.

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Yes and what is 25 + 25?

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Yes, so \(r=\sqrt{50}\)

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1\[\large A_{\text{circle}} = \pi r^2 = \pi (\sqrt{50})^2 = ~?\]

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Okay, yeah I see what you mean

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1OOOHHHHH I was putting 50 instead of 7! ;v; Thanks!!

Zuha
 one year ago
Best ResponseYou've already chosen the best response.13.14*7^2=157.1 which is the right answer

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1May I ask you another question?

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Well when we square a square root we get the stuff inside the square root :c \[(\sqrt{x})^2 = x\] the square root and the square cancel eachother out. So.... I'm not sure where to go from that point.

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1Oh I guess you first simplified \(\sqrt{50} \approx 7.0\) then squared it.

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1Yup, may I ask another q?

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1I've got to head off OpenStudy right now, but @triciaal can help you! they are very smart as well :) Good luck!

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1this is like going the other way you have r from the area then use the formula I gave above for the circle to find (x, y) you are given (h,k) the center

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1Yes, thank you for the formula, but I can't really read all of the text you gave before ..

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442808097127:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442808182815:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442808245627:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1coordinates for center of circle

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442808479367:dw

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1I'm sorry, I really can't understand...

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1I don't know how to make you understand I am totally confused now because this is even shown in the diagram I don't know what question you have

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1I have four answer options

Zuha
 one year ago
Best ResponseYou've already chosen the best response.1(6, 4) (2, 1) (4, 4) (2, 9)
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