Question

O on
а a
3-
а as
and the
Take a point
page of
note book. With
O
centre
your
as draw
two
concentric
circles,
one
with radius
2.2cm
with
Other
radius 4cm. Take a
point
А A
on
the outer circle. Join
O
o and
A Mark the point where
OA intersects mi Enner circe at
B. Now measure
the
length of BA.​

Answer 1

Answer:

this one i can't understand

thank you