Answer:
112
Step-by-step explanation:
We have
Angle ORQ
we use the Thales theory
From the formulae
A²+B²=C²
consider
A=OR
B=RQ
C=OQ
so
48²+64²=C²
2304+4096=C²
6400=C²
(6400)¹/²=(C²)¹/²
80=C
But
《OQ=80
