Problem 8
P is the midpoint of of OQ
OP = 4 Given
1/2 OQ = PQ = 4 Midpoint properties.
OP + PQ = 4 + 4 = 8
QR = OQ Midpoint properties.
QR = 8 <<<< Answer
Problem 9
BC = CD = 11 Given and properties of a midpoint.
BD = BC + CD
BD = 11 + 11
BD = 22 Given and properties of a midpoint.
AC = AB + BC
AB = BD = 22 Properties of a midpoint
AC = AB + BC
AC = 22 + 11
AC = 33
