Hình bình hành
Parallelogram
A quadrilateral that has two pairs of lengths that are parallel to each other; opposite sides are equal in length, no right angles, no lines of symmetry.
Parallelogram
Two lines that are the same distance apart all along their length, the two lines never cross.
parallel
A 6-sided polygon
hexagon
A 2D diagram that can be folded to make a 3D shape with no gaps or overlap.
net
How many degrees in half a right angle?
45 degrees
A 7-sided polygon
heptagon
A triangle with all three sides the same lenghth, all three angles are equal.
regular triangle
The direction that hands move on a clock. (clockwise / anti-clockwise)
clockwise
song song
parallel
Four sides, four right angles, four lines of symmetry, all sides are equal in length.
square
hình khối tứ diện (4 mặt)
tetrahedron
A 5-sided polygon
pentagon
How many degrees in a right angle?
90 degrees
A 3D shape with 4 triangular faces
tetrahedron
An 8-sided polygon
octagon
Four sides, four right angles, two lines of symmetry, two opposite sides are equal in length.
rectangle