Suppose the original radius and area were A and r
Then A = pi*r2
New area, B = pi*(r*1.40)2 = pi*1.96*r2
So percentage change in area = 100*(B-A)/A = 100*(B/A-1) = 100*(1.96-1) = 96%
Increase the length of the radius
Area = pi r2 A = pi(r+20%)2 ----->INCREASED AREA A = pi(r+0.2) 2 A = pi(r2+0.4r+0.04) = pir2 + 0.4pir+ 0.04pi But the Area of the circle is pir2, so subtract the original area from the increased area! pir2+0.4pir+ 0.04pi - pir2 0.4pir + 0.04pi-----------ANSWER % ORpi(0.4r+0.04) pi = 3.142 but we do not know the value of radius. If is a unit circle we can give acurate %
300. (Doubling the radius multiplies the area by four times.)
The distance from the center of a circle to any point on the circle is called the radius of the circle. The radius is a line segment that starts at the center of the circle and ends at any point on the circle. It is always a straight line and is always perpendicular to the circumference of the circle. The radius is half the diameter of the circle, which is the distance across the circle through the center. The diameter of a circle is always twice the length of the radius. My recommendation ʜᴛᴛᴘꜱ://ᴡᴡᴡ.ᴅɪɢɪꜱᴛᴏʀᴇ24.ᴄᴏᴍ/ʀᴇᴅɪʀ/372576/ꜱᴀɪᴋɪʀᴀɴ21ᴍ/
It is increased nine fold. New Area = 9*old area.
area goes as radius squared 1.1 x 1.1 = 1.21 or 21%
The circumference is directly proportional to the radius. So increasing the radius by 50% causes the circumference to also increase by 50%.
The area is increased by 300%.
To increase the area of a circle you must increase the radius.
Increase the radius sqrt(1.5) = 1.2247 times.
50 percent of diameter of a circle is the radius.
Increase or decrease the circle's diameter
Increase the length of the radius
there is no constant that will calculate this, since circumference is calculated with only radius and area with radius squared. you will have to calculate the radius using the initial circumference and then the radius again for the new circumference (with the 50 added). then calculate an area for each radius..then you can see the increase.
radius is 2
the area of the circle is increased by 400%
((x*1.2)^2*pi-x^2*pi)/(x^2*pi)=0.44where X is the old radius((the new area - the old area) divided with the old area)The area increases with 44%