Respuesta :
Circle A
d=8
r=d/2=8/2=4
r=4
Area= π•4^2
Area=3.14•16
Area=50.24 in^2
Circle B
d+4=8+4=12
r=12/2=6
r=6
Area= π•r^2
Area=3.14•6^2
Area=3.14•36
Area=113.04 in^2
Circle C
d+4=12+4=16
r=16/2=8
r=8
Area= π•8^2
Area=3.14•64
Area=200.96 in^2
d=8
r=d/2=8/2=4
r=4
Area= π•4^2
Area=3.14•16
Area=50.24 in^2
Circle B
d+4=8+4=12
r=12/2=6
r=6
Area= π•r^2
Area=3.14•6^2
Area=3.14•36
Area=113.04 in^2
Circle C
d+4=12+4=16
r=16/2=8
r=8
Area= π•8^2
Area=3.14•64
Area=200.96 in^2
Answer:
Step-by-step explanation:
radius of A = 4 in
area of A = 16π in²
radius of B = 6 in
area of B = 36π in²
radius of C = 8 in
area of C = 64π in²
Area of A is 16Ï€/(36Ï€) the area of B = 4/9 the area of B
Area of B is 36Ï€/(64Ï€) the area of C = 9/16 the area of B