ဓရီုကျာ:ဂေသြမေတြဳ

Solid Geometry

Solid Geometry is the geometry of three-dimensional space, the kind of space we live in.

Three Dimensions

Shapes

Torus

Cylinder (ထၜောမ်)

Cone

Cube

cuboid

Triangular Pyramid

Square Pyramid

Square Pyramid

Square pyramid

Prisms

Plane Geometry

Plane Geometry is all about shapes on a flat surface (like on an endless piece of paper).

Point; A Point has no dimensions, only position Line; A Line is one-dimensional Plane; A Plane is two dimensional (2D) Solid; A Solid is three-dimensional (3D)

Triangles

A triangle has three sides and three angles. The three angles always add to 180°.

Equilateral Triangle

Three equal sides. Three equal angles, always 60°

Isosceles Triangle Two equal sides Two equal angles

Scalene Triangle No equal sides No equal angles

Acute Triangle All angles are less than 90°

Right Triangle Has a right angle (90°)

Obtuse Triangle Has an angle more than 90°

Right-Angled Triangles A right-angled triangle (also called a right triangle) is a triangle with a right angle (90°) in it.

Two Types There are two types of right angled triangle:

Isosceles right angled triangle

One right angle Two other equal angles always of 45° Two equal sides

Scalene right-angled triangle

One right angle Two other unequal angles No equal sides

Interactive Triangles