Answer:
a
Step-by-step explanation:
240
4.77 cm correct to the nearest hundredth.
The new circumference = 19 - 4 = 15 cm.
Circumference C = π * diameter
So the diameter = C/π = 15/π = 4.7746 cm
A(20) = a+(20-1)d
A(20) = 102+(19)(-3)
A(20) = 102-57 = 45
