Step-by-step explanation:
The diameter of the circle is 4 inches so its radius r is 2 inches. The area of the circle is

The circumference C of the circle is

Answer:
what
Step-by-step explanation:
Answer:
40 * 6.5 = 260 --> D. 260.00
Answer:
x=5 and 3
Step-by-step explanation:
x^2-8x+21=6
x^2-8x+21+16=6+16
(x-4)^2=1
(x-4)=±1, x=5 and 3
The diameter splits the circle into 2 equal halves by going through the midpoint of the circle. The two halves are called semicircles.