### Sector of Circle

Illustration of a circle with a sector. "A sector of a circle is the space included between an arc and…

### Sector Of Circle

Illustration of a sector of a circle. A sector is the space between an arc and two radii drawn to the…

### Sector Of A Hollow Circle

Illustration of a sector of a hollow circle. A sector is the space between an arc and two radii drawn…

### Sectors of Circle

Illustration of a circle with 6 equal sectors.

### Circle with Segment, Semicircle, Sector, Quadrant, and Central Angle

Illustrations of a circle with segment, semicircle, sector, quadrant, and central angles drawn.

### Circle Sector

An illustration showing a circle sector with radius r, center/central angle v, and length of circle…

### Circle Sector

An illustration showing a circle sector with center/central angle v and polygon angle w.

### Circle Sector

An illustration showing a circle sector with height of segment h and radius r.

### Spherical Sector

Illustration of a spherical sector.

### Sphere With Sectors and Arcs

Diagram of a sphere with sectors and arcs drawn.

### Superimposed Symmetrical Spherical Triangles

Diagram showing 2 superimposed symmetrical spherical triangles.

### Symmetrical Spherical Triangles

Diagram showing 2 symmetrical spherical triangles.

### Logarithmic Spiral Sector

In this illustration, "the driven surface of the slide coincides with the tangent to the spiral, the…

### Circle Inscribed In A Triangle

An illustration showing a circle with sectors D and E inscribed in a triangle with angles, A, B, and…

### Spherical Triangle

Diagram showing a spherical triangle.

### Spherical Triangle

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

### Spherical Triangle

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

### Spherical Triangle

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

### Two Symmetrical Spherical Triangles

Diagram showing a 2 symmetrical spherical triangles.