Example 1 - Find equation of circle centre (0, 0), radius r - Examples

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


Transcript

Example 1 Find an equation of the circle with centre at (0,0) and radius r We know that equation of a circle is (x­ – h)2 + (y ­– k)2 = r2 Where (h, k) is the centre & r is the radius Here Centre (h, k) = (0, 0) So h = 0 & k = 0 & radius is r . Putting values in (1) (x − 0)2 + (y – 0)2 = (r)2 x2 + y2 = r2 Hence the required equation of circle is x2 + y2 = r2

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.