 ### 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.