Area = pi*(diameter/2)2 = pi*252 = 1963.50 mm2
Area = pi*252 = 1963.495 square mm to 3 decimal places
The radius is 1/2 the diameter. In other words, just divide the diameter by 2.
That's 50mm. 2X2.5cm=5cm=50mm
You can make your circle as large or as small as you want.
quite big, maybe
The circumference of a circle is: 2*pi*radius or pi*diameter
If the diameter of a circle is 50 mm, what is the radius?
C = ~157.08 mm
Area cannot be measured in mm. So an area of 50mm cannot exist and therefore, there can be no answer to this question.
Area = pi*(diameter/2)2 = pi*252 = 1963.50 mm2
Area = pi*252 = 1963.495 square mm to 3 decimal places
It is: 50mm = 5cm
The radius is 1/2 the diameter. In other words, just divide the diameter by 2.
Canon makes the best 50mm camera lens, known as the EF 50mm f/1.8mk2, 50mm f/1.4 USM and 50mm f/1.2L lenses
50mm from 0.14mm = -49.86mm
50mm converts to 0.05m (multiply millimeters by 0.001)