The diameter of a circle has endpoints whose coordinates are R(-2, 2) and S(4, 2). What is the radius of the circle?

1 Answer
arko
May 28, 2017

#the# #radius# of #the# circle will be#=##3##units#

Explanation:

#We# can easily find out the #center# #of# the #cirlce#

  • #The# coordinates will be#:-#
    #=##((-2+4)/2#,#(2+2)/2)#
    #=##(2/2#,#4/2)#
    #=##(1#,#2)#
    after getting the center #we# #have# to find the distance from any one point
    we get that
    #sqrt((4^2-1^2)+(2^2-2^2)#
    #sqrt(3^2##=#3
    so essentially the #ans# is #3#units
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