Question

11
Question 2(b) Area of pink region if
inner radii is 14 cm and outer radii is
21 cm.*
(1 Point)
54
45
72
103. If the region containing the pink colour makes an
angle of 0, = 72" at the centre, what is the area of
the region having pink colour?
(a) 214 cm
(b) 154 cm
(c) 275 cm
(d) 196 cm
MO
2​

Answer 1

Answer:

b 154 cm

please mark me as the brainliast

Answer 2

Answer:

Step-by-step explanation:

11. Q2(b)

External radii, R=21 cm

Internal radii, r=14 cm

Area of circular ring=(R^2-r^2)

=> Area of circular ring=22/7 (21^2-14^2)

=22/7×245

=770 cm^2