Wednesday
April 16, 2014

Homework Help: math

Posted by Cynthia on Thursday, October 9, 2008 at 5:11pm.

The equation of a circle with centre O(0,0) is x^2+y^2=40. The points A(-2,6) and B(-6,-2) are endpoints of chord AB. DE right bisects chord AB at F.
a)Verify that the centre of the circle lies on the right bisector of chord AB.
b)Find the distance from the centre of the circle to chord AB, to the nearest tenth.

now, i can do the problem, but i just dont understand where i use x^2+y^2=40.. i mean what's the purpose of it??? PLEASE HELP ME!!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Maths - AB is a chord with centre O and radius 4 cm. AB is of length 4 cm and ...
geometry - In a circle with centre P,a chord AB is parallel to a tangent & ...
can xome1 help me plzz im stuck - HELP PLZZ...A circle has radius 2 cm,(in that ...
Math- Circles - Suppose you have a perpendicular bisector of a chord passing ...
Math - G is a circle with chord AB. P is a point outside of G such that PA is ...
GEOMETRY CIRCLES - 1. Ab is a chord of a circle with center o and radius 52 cm...
Geometry about the circles - 1. Ab is a chord of a circle with center o and ...
Geometry about the circles - 1. Ab is a chord of a circle with center o and ...
maths - A chord subtends an angle of 68 degree at the centre of a circle of ...
Circle geometry - A chord is 6.0 cm from the centre of a circle of radius 10 cm...

Search
Members