ClipArt ETC
A protractor indicating a measurement of 45 degrees from the right side.

Protractor, 45 Degrees

A protractor indicating a measurement of 45 degrees from the right side.

A protractor indicating a measurement of 50 degrees.

Protractor, 50 Degrees

A protractor indicating a measurement of 50 degrees.

A protractor indicating a measurement of 50 degrees from the right side.

Protractor, 50 Degrees

A protractor indicating a measurement of 50 degrees from the right side.

A protractor indicating a measurement of 55 degrees.

Protractor, 55 Degrees

A protractor indicating a measurement of 55 degrees.

A protractor indicating a measurement of 55 degrees from the right side.

Protractor, 55 Degrees

A protractor indicating a measurement of 55 degrees from the right side.

A protractor with 60 and 120 degree suplementary angles indicated.

Protractor, 60 and 120 Degrees

A protractor with 60 and 120 degree suplementary angles indicated.

A protractor indicating a measurement of 60 degrees.

Protractor, 60 Degrees

A protractor indicating a measurement of 60 degrees.

A protractor indicating a measurement of 60 degrees from the right side.

Protractor, 60 Degrees

A protractor indicating a measurement of 60 degrees from the right side.

A protractor indicating a measurement of 65 degrees.

Protractor, 65 Degrees

A protractor indicating a measurement of 65 degrees.

A protractor indicating a measurement of 65 degrees from the right side.

Protractor, 65 Degrees

A protractor indicating a measurement of 65 degrees from the right side.

A protractor indicating a measurement of 70 degrees.

Protractor, 70 Degrees

A protractor indicating a measurement of 70 degrees.

A protractor indicating a measurement of 70 degrees from the right side.

Protractor, 70 Degrees

A protractor indicating a measurement of 70 degrees from the right side.

A protractor indicating a measurement of 75 degrees.

Protractor, 75 Degrees

A protractor indicating a measurement of 75 degrees.

A protractor indicating a measurement of 75 degrees from the right side.

Protractor, 75 Degrees

A protractor indicating a measurement of 75 degrees from the right side.

A protractor indicating a measurement of 80 degrees.

Protractor, 80 Degrees

A protractor indicating a measurement of 80 degrees.

A protractor indicating a measurement of 80 degrees from the right side.

Protractor, 80 Degrees

A protractor indicating a measurement of 80 degrees from the right side.

A protractor indicating a measurement of 85 degrees.

Protractor, 85 Degrees

A protractor indicating a measurement of 85 degrees.

A protractor indicating a measurement of 85 degrees from the right side.

Protractor, 85 Degrees

A protractor indicating a measurement of 85 degrees from the right side.

A protractor with 90 and 90 degree suplementary angles indicated.

Protractor, 90 and 90 Degrees

A protractor with 90 and 90 degree suplementary angles indicated.

A protractor indicating a measurement of 90 degrees.

Protractor, 90 Degrees

A protractor indicating a measurement of 90 degrees.

A protractor indicating a measurement of 90 degrees from the right side.

Protractor, 90 Degrees

A protractor indicating a measurement of 90 degrees from the right side.

A protractor indicating a measurement of 95 degrees.

Protractor, 95 Degrees

A protractor indicating a measurement of 95 degrees.

A protractor indicating a measurement of 95 degrees from the right side.

Protractor, 95 Degrees

A protractor indicating a measurement of 95 degrees from the right side.

Semicircle with line drawn perpendicular to the diameter.

Semicircle

Semicircle with line drawn perpendicular to the diameter.

Illustration of a semicircle.

Semicircle

Illustration of a semicircle.

Illustration of a circle used to prove "Any angle inscribed in a semicircle is a right angle."

Right Angles Inscribed in Semicircle Proof

Illustration of a circle used to prove "Any angle inscribed in a semicircle is a right angle."

Illustration of a semicircle with chords and radii.

Semicircle With Chords and Radii

Illustration of a semicircle with chords and radii.

An illustration of a right triangle inscribed in a semicircle.

Right Triangle Inscribed In A Semicircle

An illustration of a right triangle inscribed in a semicircle.

Illustration of a sphere generated by the revolution of a semicircle ACB about its diameter AB as an axis.

Sphere Made by Revolution of Semicircle

Illustration of a sphere generated by the revolution of a semicircle ACB about its diameter AB as an…

Right triangle inscribed in semicircle. Illustration shows that the perpendicular from any point in the circumference to the diameter of a circle is the mean proportional between the segments of the diameter.

Right Triangle Inscribed in Semicircle Shows Mean Proportional

Right triangle inscribed in semicircle. Illustration shows that the perpendicular from any point in…