Question

The circumference of a circle is 176cm. Find the area of a sector whose sectorial angle is 45°

Answer 1

Answer:

2πr=circumfrence of the circle

=2*22/7*r=176

=r=176*7/2*22

=r=16*7/4

=r=4*7

=r=28

ar(sector)=45/360-sin45

=√2-8/8√2