A circular sundial has a circumference of 32􏰈 inches. What is the area of the sundial?

Question

photon336 · Answer

$$A = pir ^{2}$$

we know that our circumference is 32 inches so we must find the radius to find the area. 

$$C = 2pir$$

$$\frac{ c }{ 2\pi } = r   $$

$$\frac{ 32 inches }{ 2\pi } = radius $$

anonymous · Answer

Edit: A circular sundial has a circumference of 32π􏰈 inches. What is the area of the sundial?

photon336 · Answer

ok @frebrezze let me modify my answer

photon336 · Answer

$$\frac{ 32\pi }{ 2\pi } = 16 inches = r$$

photon336 · Answer

now 

$$a = pir ^{2}$$

$$\pi*(16)^{2} = 256\pi $$

photon336 · Answer

does this make sense? @frebrezze ?

anonymous · Answer

Thank you!!! sorry for typing it wrong and yes

photon336 · Answer

No problem and while we're at it Welcome to Open Study @frebrezze