Heights in a triangle Whiteboard exercise Play

Heron's formula Animation Play

Heron's formula for the equilateral triangle Whiteboard exercise Play

Heron's formula for the triangle Whiteboard exercise Play

Heron's formula for the triangle Student activity Play

How do we draw a triangle in LOGO? Animation Play

How do you find an angle? Student activity Play

How do you find the ratio? Animation Play

How do you find the ratio? Student activity Play

How high is the tree? Student activity Play

How high is the tree? Whiteboard exercise Play

How is the Sierpinski Gasket formed? Animation Play

How to calculate the volume of prism Animation Play

How to check directly whether two triangles are congruent Student activity Play

How to construct an equilateral triangle Animation Play

How to construct an equilateral triangle Student activity Play

How to construct an isosceles triangle Student activity Play

How to draw a triangle symmetrical to a given point Animation Play

How to use the speed equation triangle Animation Play

Image of a figure (reflection in the x-axis) Animation Play

Images of figures Animation Play

Images under symmetry Animation Play

Inscribed angle in a semicircle Student activity Play

Inscribed circles, circumscribed polygons Student activity Play

Interesting information Animation Play