Question

4.) What is the perimeter of a sector of angle 45° of a circle
with radius 7 cm​

Answer 1

Answer:

perimeter =2pier×angle/360

=45/360×2×22/7×7

1/8×44

44/8=22/4=11/2

11/2 is the perimeter of circle

Answer 2

Answer:

45÷360×π×7×7 =19.2422550