answersLogoWhite

0


Best Answer

Area of a circle = pi*radius2

User Avatar

Wiki User

12y ago

Still curious? Ask our experts.

Chat with our AI personalities

EzraEzra
Faith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
BeauBeau
You're doing better than you think!
Chat with Beau

Add your answer:

Earn +20 pts
Q: What are the numbers for pir2?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the area of a circle in terms of pi?

piR2


How do you work out the area of a ring?

PiR2=area


If the radius of a circle is increased by 20 percent then the area is increased by?

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 %


What happens to the area of a circle when the radius is doubled?

A=pir2 a=pi2r2 a=pi4 r2 a increases by 4 times


How do you enter Pi in Microsoft Excel?

=PI()If you want to multiply PIr2 use the formula: =PI()*(r^2)


How do you get the area when you have the radius?

My math teacher said pir2 in other words pi x radius to the second power.


If the diameter of a circle is 14 cm what is the area of the circle?

A= pi r2 radius=14 A=pir2 22/7.14.14 A=616cm2


What is the area of a circle if its radius is 8?

Area = pir2 Area = 3.1416x82 Area = 201 rounded to the nearest whole number


What is the surface area of a cylinder with base radius 4 and height 9?

Area = pir2+2pirh=3.1416x42+2X3.1416x4x9=50+226=276


What is the area of a circlewith diameter of 9yd?

Pir2 r = 1/2 diameter Pi = 3.1416 64 square yards rounded to the nearest whole number


What is the volume of a cylinder with a height 0f 9 inches and a radius of 4 inches?

= piR2 x Height = 3.142 x (42) x 9 = 452.448 inches3


The surface area of a sphere can be approximated as follows Surface area 4 and pir2 where r is the radius of the sphere and pi is a constant that is roughly equal to 3. Using the simple?

48m2