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Area of a circle = pi*radius2
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∙ 11y ago
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What are the different types of numbers?
irrational numbers odd numbers even numbers whole numbers prime numbers composite numbers counting numbers
Are there any prine numbers that are square numbers?
There are no prime numbers that are square numbers
Are rational numbers whole numbers?
The set of rational numbers includes all whole numbers, so SOME rational numbers will also be whole number. But not all rational numbers are whole numbers. So, as a rule, no, rational numbers are not whole numbers.
What are the set of the real number?
the set of real numbers are the numbers which make the entire number system. they include all the different number systems like integers,rational numbers,irrational numbers,whole numbers & natural numbers.
What is the differences among integers rational numbers real numbers and irrational numbers?
Integers are whole numbers. They are the counting numbers, 0 and the corresponding negative numbers. Rational numbers are numbers that can be expressed as a ratio of two integers (the second one being non-zero). Irrational numbers are numbers that are not rational numbers. Rational and irrational number together form the set of real numbers.
How do you work out the area of a ring?
PiR2=area
What is the area of a circle in terms of pi?
piR2
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.
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
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 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
