Learn English > English lessons and exercises > English test #97007: Geometry - Vocabulary

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Geometry - Vocabulary - English lesson

GEOMETRY - VOCABULARY


Point	Midpoint	Plane shape Two dimensional shape	Solid Three dimensional shape

Horizontal straight line	Vertical straight line	Curved line	Broken line	Perpendicular lines	Parallel lines

Square	Rectangle	Triangle	trapezium (UK) / trapezoid (US)	rhombus

Oval - Ellipse	Circle	Half-circle	Hexagon	Pentagram

Disc	Cylinder	Cube	Prism	Sphere

Right angle	Obtuse angle	Acute angle	Straight angle	Reflex angle	Full rotation angle

Circumference	Area	Radius	Diameter	Segment	Sector

Length	Width	Perimeter	Diagonal	Sides

Depths	Height	Face	Base	Vertex (pl. vertices)	Edge

Extra vocabulary :


Drawing rule	Set-square	Protractor	Compass

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Which shape can I make with these sticks ?

What shape do you think of when seeing these pics ?

curved line
hexagon
cylinder
cube
sphere
prism

The diameter is a straight line that passes through the center of the circle and cuts it in two equal parts.
A straight angle measures 360 degrees, and forms a line with its sides
A box, a cylinder, a prism, a sphere ... are solids or three dimensional objects.
The perimeter of a circle is called its circumference.
A star is like a pentagram.