if
=3.14.
11 The perimeter of the major sector AOB in
the diagram
below is 40.5 cm. The length
of the major are AB is 30.5 cm
and
the an
gle it subtends at the centre is 350°. Find
the radius of the circle and hence work out
the perimeter of the minor sector OAB
(Take # = 3.14)
16 cit
gle
leng
Wh
arc
Use
350°
7
30.5 cm
th
​