The outline of a sign for an ice-cream sto
题型：单项选择题
问题：
The outline of a sign for an ice-cream store is made by placing 
of the circumference of a circle with radius 2 feet on top of an isosceles triangle with height 5 feet, as shown above. What is the perimeter, in feet, of the sign ？（）
A.A
B.B
C.C
D.D
E.E