3 inches because he took off one forth of a foot. if a foot is 12 inches and you take off one forth, it would be like dividing 12 by 4. This would give you an answer of 3 inches.
0.2 is also 20% hope this helps
Answer:
Area is = to 1017.88
Circumference is = to 113.1
Step-by-step explanation:
To find the area of a circle use the formula A=πr2
So . . .
A = π18²
A = π324
A = 1017.88
To find the circumfrence of a circle use formula C=2πr
So . . .
C = 2π18
C= 113.1
Hope this helps
Brainliest please!