VG1
ordbok
Dictionary: Diameter and radius
Radius is the distance from the centre to the edge of a circle. Diameter is the distance all the way across — twice the radius.
d = 2r · r = d/2
Radius (r) is measured from the centre to the edge. Diameter (d) is the longest line through the circle.
Area = π · r² · Circumference = 2 · π · r
The circle is the most perfect shape.
— Proclus (412–485)
Read also
Dictionary: Variable
A variable is a symbol, usually x or y, that represents an unknown number.…
Dictionary: Hypotenuse
The hypotenuse is the longest side in a right-angled triangle — the side opposite the righ…
Dictionary: Absolute value
The absolute value of a number is its distance from zero on the number line — always non-n…