Answer:

Step-by-step explanation:

Hello,
What do you want?
a(2)=4*a(1)==>a(1)=12/4=3
a(0)=3/4
a(n)=3/4 * 4^n (genearl term)
Answer:
none of these triangles are similar
Step-by-step explanation:
for a triangle to be similar, they have to have the same angle measures
Look carefully at the diagram. The shaded region represents 3/4 of the total area of the circle, which, in turn, is pi*r^2, or pi*(8 cm)^2.
Thus, the area of the shaded region is (3/4)*pi*(64 cm^2), or 48 pi cm^2.