Question

In the given figure, PQ is perpendicular bisector of AB. If AB = 8 cm, then find OA.​

Answer 1

Answer:

OA=1/2AB

or,OA=4cm

Step-by-step explanation:

PQ is the perpendicular so it's bisects the line.

Answer 2

$ab = 8 \\ angle \:aob = 180 = poa = pob = 90$

$ao = bo \\ ao + bo = 8 \\ ao + ao = 8 \\ 2ao = 8 \\ ao = 4$