Triangle With Parallel Segment Drawn
Illustration of a triangle with a segment parallel to the base.
Right Triangle With Midpoint of Hypotenuse Drawn
Illustration of a right triangle with the midpoint of the hypotenuse drawn.
Right Triangle With One Angle Double the Other
Illustration of a right triangle with one angle the double of the other.
Proof of Equal Triangles Drawing
Illustration to show if two triangles have two sides of the one equal, respectively, to two sides of…
Incenter of Triangle
Illustration to show angle bisectors in a triangle. It is known as the incenter.
Circumcenter of Triangle
Illustration to show perpendicular bisectors in a triangle. It is known as the circumcenter.
Orthocenter of Triangle
Illustration to show altitudes in a triangle. It is known as the orthocenter.
Bisected Vertical Angle of an Isosceles Triangle
Illustration to show that the bisector of the vertical angle of an isosceles triangle bisects the base,…
Perpendicular Bisector of the Base of an Isosceles Triangle
Illustration to show that the perpendicular bisector of the base of an isosceles triangle passes through…
Bisector of an Exterior Angle of an Isosceles Triangle
Illustration to show that the bisector of an exterior angle of an isosceles triangle, formed by producing…
Leg Produced through the Vertex of an Isosceles Triangle
Illustration to show that if one of the legs of an isosceles triangle is produced through the vertex…
Angle Bisector Drawn Parallel to A Side
Illustration to show that if through any point in the bisector of an angle a line is drawn parallel…
Midpoints of Triangle Divide Triangle into Four Equal Triangles
Illustration to show that if the lines joining the middle points of the sides of a triangle divide the…
Altitudes Drawn from Base Angles of Isosceles Triangles
Illustration to show altitudes drawn from base angles of an isosceles triangle.
Medians Drawn Drawn to Legs of Isosceles Triangles
Illustration to show the medians drawn to the legs of an isosceles triangle.
Perpendiculars Dropped From Midpoint of Base to Legs of Isosceles Triangles
Illustration to show the perpendiculars dropped from the midpoint of the base to the legs of an isosceles…
Point in Base of Isosceles Triangle
Illustration to show that the difference of the distances from any point in the base produced of an…
Perpendiculars Dropped Any Point in the Equilateral Triangle
Illustration to show the perpendiculars dropped from any point in the equilateral triangle to the three…
Triangles With The Same Base
Illustration to show two triangles with the same base and on the same side of the base.
Triangle With Lines From the Vertices That Join a Point Within
Illustration to show lines drawn from the vertices to join at a point within the triangle.
Isosceles Triangle With Parallelogram inside
Illustration to show that if from any point in the base of an isosceles triangle parallels to the legs…
Triangle With Bisectors of Vertical Angles
Illustration to show the bisector of the vertical angle A of a triangle ABC, and the bisectors of the…
Triangle With Bisectors of Base Angles
Illustration to show if the bisector of the base angles of a triangle are drawn, and through their point…
Triangle With Bisector and Perpendicular From Vertex Drawn
Illustration to show the bisector of the vertical angle of a triangle makes with the perpendicular from…
Circle With Inscribed Right Angle in Semicircle
Illustration of a circle with a right angle inscribed in a semicircle.
Circle With Inscribed Angle Greater Than Semicircle
Illustration of a circle with an angle inscribed in a segment greater than a semicircle, an acute angle.
Circle With Inscribed Angle Less Than Semicircle
Illustration of a circle with an angle inscribed in a segment less than a semicircle, an obtuse angle.
Circle With Diameter, Radius, Segment, Line
Illustration showing a circle with a diameter, radius, lines, triangle, and segment drawn.
Two Intersecting Circles With Lines
Illustration showing 2 intersecting circles with a lines drawn that form a triangle.
Circle Inscribed in a Right Triangle
Illustration showing the diameter of a circle inscribed in a right triangle is equal to the difference…
Circle With a Right Triangle
Illustration where one leg of a right triangle is the diameter of a circle. The tangent at the point…
Circle With a Tangent Line and Chord
Illustration showing that from any point in the circumference of a circle, a chord and a tangent are…
Circle With Inscribed Equilateral Triangle
Illustration showing an equilateral triangle inscribed in a circle.
Circle With Inscribed Quadrilateral and Triangles Formed
Illustration showing a circle with an inscribed quadrilateral and triangles formed by extended chords.
Construction to Find the Third Angle of a Triangle When Given Two Angles
Illustration of the construction used to find the third angle of a triangle when two of the angles are…
Construction of a Triangle When Given Two Sides and Included Angle
Illustration of the construction used to make a triangle when given two sides and the included angle.
Construction of a Triangle When Given a Side and Two Angles
Illustration of the construction used to make a triangle when given a side and two angles.
Construction of a Triangle When Given Two Sides and the Angle Opposite (Ambiguous Case)
Illustration of the construction used to make a triangle when given two sides and the angle opposite…
Construction of a Triangle When Given Two Sides and the Angle Opposite (Ambiguous Case)
Illustration of the construction used to make a triangle when given two sides and the angle opposite…
Construction of a Triangle When Given Two Sides and the Angle Opposite (Ambiguous Case)
Illustration of the construction used to make a triangle when given two sides and the angle opposite…
Construction of a Triangle When Given Three Sides
Illustration of the construction used to make a triangle when given three sides.
Construction to Circumscribe a Circle About a Triangle
Illustration of the construction used to circumscribe a circle about a given triangle.
Construction to Inscribe a Circle in a Triangle
Illustration of the construction used to inscribe a circle in a given triangle.
Construction of Escribed Circles With Ex-centres
Illustration of the construction used to escribe circles with centres (centers) called ex-centres of…
Construction of a Triangle Given Perimeter, Angle, Altitude
Illustration used to construct a triangle , given the perimeter, one angle, and the altitude from the…
Triangle With Line Parallel to Base and Two Intersecting Lines
Illustration showing a triangle with a line parallel to the base and two intersecting lines.
Circle With Inscribed Triangle and Radii
Illustration showing a circle with an inscribed triangle and radii.
Triangle With Altitude and Isosceles Triangles Within
Illustration showing a triangle with an altitude CD passing through the middle of EF. Triangles AEC…
Circle With Triangles and Circle Within
Illustration showing a circle with equilateral triangles and another circle within.
Triangle Divided by Parallel Lines to Form Proportionate Triangles
Illustration to show that if a line is drawn through two sides of a triangle parallel to the third side,…
Triangle Divided by Parallel Lines to Form Proportionate Triangles
Illustration to show that if a line divides two sides of a triangle proportionally, it is parallel to…
Angle Bisector of Triangle Dividing Opposite Side Into Proportionate Segments
Illustration to show that an angle bisector of a triangle divides the opposite side into segments which…
Exterior Angle Bisector of Triangle Dividing Opposite Side Into Proportionate Segments
Illustration to show that a bisector of a an exterior angle of a triangle divides the opposite side…