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What happens to circumferences and areas when the radius of circle is multiplied by some number x?
The circumference of a circle is 2 * pi * r.
If you multiple r by x you get 2 * pi * (r * x) which is the same as x * (2 * pi * r).
So the circumference is multiplied by x.
The area of a circle is pi * r2.
Multiply r by x and you get pi * (rx)2 which is the same is (pi * r2) * x2.
So the area gets multiplied by x2.
What else can I help you with?
What happens to a number when it is multiplied by 10?
it become and even number
What happens when a fraction is multiplied by its reciprocal?
When any number is multiplied by its reciprocal, the product is ' 1 '.
What happens to the cube of a no if the nos multiplied by 4?
If you multiplied a number by 4, then the cube of the number would be increased by a factor of 16.
What happens to the inequality when it is multiplied by a negative number?
The inequality is "flipped" when multiplied by a negative number. For example, if x > y and a is a negative number, then ax < ay.
What happens to the perimeter and the area of a rectangle if the length and the width are multiplied by the same number Use diagrams to explain?
If the length and width of a rectangle are multiplied by the same number, then . . . -- the perimeter is multiplied by the same number -- the area is multiplied by the square of the numbner
What happens to a number when it is multiplied by 10?
it become and even number
What happens when a fraction is multiplied by its reciprocal?
When any number is multiplied by its reciprocal, the product is ' 1 '.
What happens to the cube of a no if the nos multiplied by 4?
If you multiplied a number by 4, then the cube of the number would be increased by a factor of 16.
What happens to the inequality when it is multiplied by a negative number?
The inequality is "flipped" when multiplied by a negative number. For example, if x > y and a is a negative number, then ax < ay.
What happens to a mixed number when it is multiplied by a fraction?
The answer depends on the fraction.
What happens to the perimeter and the area of a rectangle if the length and the width are multiplied by the same number Use diagrams to explain?
If the length and width of a rectangle are multiplied by the same number, then . . . -- the perimeter is multiplied by the same number -- the area is multiplied by the square of the numbner
What is the circumference of a 6 in circle?
3.14 (pi) multiplied by the diameter of the circle. So if the circle measures 6 inches across the entire width of the circle, that would be the number to begin with.
What happens when you multiply any number by 0?
Any number multiplied by zero = 0
What happens to a whole number when multiplied by a fraction smaller than one?
It decreases.
What happens to a whole number when multiplied by a fraction greater 1?
It increases the value.
What happens when you move the decimal point 3 places to the right?
The number is multiplied by 1000.
What is the perimeter of a perfect circle?
The measure around a circle is called a circumference, rather than a perimeter. The term "perimeter" is used for polygons. The circumference of a circle is equal to the diameter, multiplied by pi - or to the radius, multiplied by 2 x pi. The number pi - which can be defined precisely as the ratio between the circumference and the diameter of a circle - is approximately 3.1416.
