Question 899047
The midpoint is the average of x and y values of the endpoint.
{{{x[m]=(x[B]+x[C])/2}}}
{{{x[m]=(0+2h)/2}}}
{{{x[m]=h}}}
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{{{y[m]=(y[B]+y[C])/2}}}
{{{y[m]=(2k+0)/2}}}
{{{y[m]=k}}}
(h,k)
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{{{AP^2=(h-0)^2+(k-0)^2}}}
{{{AP^2=h^2+k^2}}}
{{{AP=sqrt(h^2+k^2)}}}
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{{{BP^2=(h-0)^2+(k-2k)^2}}}
{{{BP^2=h^2+(-k)^2}}}
{{{BP=sqrt(h^2+k^2)}}}
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{{{CP^2=(h-2h)^2+(k-0)^2}}}
{{{CP^2=(-h)^2+k^2}}}
{{{CP=sqrt(h^2+k^2)}}}