What is the exact area of a circle whose diameter is 24 cm?

A.
576 straight pi cm2

B.
144 straight pi cm2

C.
48 straight pi cm2

D.
24 straight pi cm2

@tkhunny
@jackmullen55

Question

What is the exact area of a circle whose diameter is 24 cm?
 
 A.
 576 straight pi cm2
 
 B.
 144 straight pi cm2
 
 C.
 48 straight pi cm2
 
 D.
 24 straight pi cm2

@tkhunny 
@jackmullen55

anonymous · Answer

i got B. im i correct

hysusonic · Answer

do you know how to get diameter?

hysusonic · Answer

area* sorry

anonymous · Answer

yes

hysusonic · Answer

okay so half the diameter is the radius so then you plug in the numbers into pi*r^2

so 24/2=12
12^2=144pi

anonymous · Answer

pi*r^2

so 24/2=12
12^2=144pi.
B.
 144 straight pi cm2


A

≈

452.39



cm²