Evaluate
​
distance from center, a
1.815
P
equation of upper tangent line: x + 1.515 y = 1.815
​
central angle
=
1.97455
radians
​
area of red segment
=
0.527482
sq.
units
​
area of blue
curvilinear triangle
=
0.527393
sq.
units
​
blue area / red area
=
0.999832
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
central angle (radians)
area in square units
the two areas and their ratio (black line)