Question

radius of sector of a circle is 3.5cm and length of its arc is 2.2 cm . find area of sector​

Answer 1

Step-by-step explanation:

perimeter of the circle=2πr

2×22/7×3.5=

22cm sq.

22/2.2=10

it means arc is the tenth part of this circle

then area of sector=πr2/10

=22/7×3.5×3.5/10

=3.85cm sq.