Can I calculate area of an irregular driveway using perimeter length?

can I measure the perimeter of an irregular driveway then simply convert this into area using the formula for area of a circle?

• Well ... Ummm ... no .... – brhans Jan 12 '17 at 13:34
• Trevor, imagine a circular pizza, or pancake, or whatever. Imagine trying to bring the edges of the circle inward to create an irregular shape. Can you do it without the circle wrinkling and lifting off the table? No. This illustrates how 1) area changes with shape, and 2) a circle has the lowest circumference to area ratio of any shape. – isherwood Jan 12 '17 at 13:56
• Also, if you were to post an aerial/satellite image of your driveway, plenty of folks would offer suggestions for calculation. You'd probably get a very precise answer if you included a reference dimension. – isherwood Jan 12 '17 at 14:01
• Thanks guys. Just had a coffee and a slice of cake. I've reduced cake circumference by about one sixth but now need to add on 2xradius to obtain 'perimeter'. Conclusion: Stack Exchange is a useful tool and coffee is a good stimulant. Trevor – trevor Jan 12 '17 at 15:16
• Recommend closing as off-topic: this is a math question. – Carl Witthoft Jan 12 '17 at 18:19