Answer:
he is putting 225 in his account
Step-by-step explanation:
450 ÷ 2 = 225
divide by 2 because it say half
r=4cm
d Diameter
cm
d
r
C
A
Unit Conversion:
d=8cm
Using the formula
d=2r
Solving forr
r=d
2=8
2=4cm
proportional because 1*5/3*5=5/15