Math, asked by PoonamGaegyan177, 1 year ago

A point (- 1, - 2) is on a circle with centre (1, 2). what is the circumference of the circle?

Answers

Answered by GB2010

1

Hiiii....

By distance formula ....

R = [ ( -1 - 1)^2 + ( -2 -2 )^2 ] ^0.5 ...
R =
$\sqrt{20}$
Now ...

Circumference = 2 pie × r
= 28.07 ....

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