Radius: 45/2 = 22.5mm
The length of a radius is not the length of a diameter. The diameter is two times the length of the radius.
When you have the radius of a circle and you are trying to find the diameter, multiply the radius by two; the answer is the diameter. If you have the diameter and want to find the radius, divide the diameter by two; the answer will be the radius. The diameter is 54 centimeters.
diameter is longer. radius is half of diameter
Radius = 1/2 of diameter
The diameter is double the radius.
The area (A) of a circle is A = π . r2 The diameter (D) is equal to D = r / 2 . Were r is the radius. If the diameter of the circle is 45 mm, and we divide it by 2. We will obtain the radius which is equal to 22,5mm: D = 45mm / 2 = 22,5mm If we square this radius the result is 506,25mm2: r2 = (22,5mm)2 = 506,25mm2 So the area of the circle of diameter 45mm is: A = 506,25mm2 . π = 1590,43mm2d
The radius of a coin with diameter of 45 mm is : 45/2 = 22.5mm The circumference of a coin with diameter of 45 mm is 45*pi = 141,372mm rounded to 3 decimal places
45mm * 45mm * 3.14 = 6358.5 sq. mm
The area of a coin can be calculated using the formula for the area of a circle, which is A = πr², where A is the area and r is the radius of the coin. To find the area, you first need to measure the radius (half of the diameter) of the coin. Once you have the radius, square it and multiply by π (approximately 3.14). For example, if a coin has a diameter of 2 inches, its radius would be 1 inch, resulting in an area of approximately 3.14 square inches.
I don’t know why do you think I looked it up idiot are you even real
The circumference is approximately 141.37mm
The dime has the smallest diameter among the listed coins, making it the coin with the smallest radius.
Radius = Diameter/2 Diameter = 2* Radius
to get the diameter from the radius you simply multiply the radius by 2 since the radius is half the diameter. d=2r where d = diameter and r = radius
A radius is one half of a diameter so divide by two to get from a diameter to a radius. Or you can multiply the radius by 2 to get to the diameter.
The length of a radius is not the length of a diameter. The diameter is two times the length of the radius.
radius = diameter/2