Find the Radius of a Circle from a Chord!
To find the radius of a circle from a chord and its distance from the center:
r = √[(d² + (c/2)²)], where d is the distance from center, and c is the chord length.
Try for c = 8, d = 6!
#GeometryShortcuts

Chord Length Trick!
Find the length of a chord using Pythagoras:
Chord = 2 × √(r² - d²). Try for r=10, d=6.
#GeometryShortcuts

Find the Radius of a Circle from a Chord!
To find the radius of a circle from a chord and its distance from the center:
r = √[(d² + (c/2)²)], where d is the distance from center, and c is the chord length.
Try for c = 8, d = 6!
#GeometryShortcuts

Chord Length Trick!
Find the length of a chord using Pythagoras:
Chord = 2 × √(r² - d²). Try for r=10, d=6.
#GeometryShortcuts