SOLUTION: Determine the radius of the circle, given its centre and a point on its circumfrence. Round the radius to the nearest tenth, if necessary. center (1,1) point (-2,1)

Question 87749: Determine the radius of the circle, given its centre and a point on its circumfrence. Round the radius to the nearest tenth, if necessary.
center (1,1) point (-2,1)
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
The radius of this circle is the distance from the centre to the point on the circumfrence. By inspection, this distance is 3 units. Would you also like the equation of the circle??

Equation of a circle:
Equation of your circle:
Equation of your circle: No extra charge!!

R^2 Retired from SCC
RELATED QUESTIONS
determine the radius of a circle, to the nearest tenth,given its centre and a point on... (answered by jim_thompson5910)

Analytic Geometry 3. Determine the radius and the diameter of teh circle with the center (answered by feliz1965)

determine the equation of a circle with centre o(0,0)and point p(9,-4) on its... (answered by robertb)

an arc of a circle of radius 7cm subtend on angle of 120 degree at the centre, find its... (answered by Seutip)

find the circumfrence of a circle having a radius of 16 inches. answer must be expressed... (answered by checkley77)

a bicycle wheel has a radius of 30. what is the circumfrence to the nearest... (answered by solver91311)

Determine the equation of each circle. a) centre (2,-5) and radius 7 b)... (answered by Alan3354)

A circle with a centre of (0,0) is defined by the equation x2 +y2 = 100.... (answered by greenestamps)

The radius of the inner circle is 1cm and the radius of the outer circle is 6cm.... (answered by greenestamps,ikleyn)