As shown in the figure, ab = 10cm, C is any point on AB, D is the midpoint of AC, e is the midpoint of BC, and the length of the spherical segment De

As shown in the figure, ab = 10cm, C is any point on AB, D is the midpoint of AC, e is the midpoint of BC, and the length of the spherical segment De

AB = 10cm, C is any point on AB, D is the midpoint of AC, e is the midpoint of BC, and the length of the spherical segment De
D is the midpoint of AC
∴DC=AC/2
E is the midpoint of BC
∴CE=BC/2
∴DC+CE=(AC+BC)/2=AB/2
∴DE=5cm