triangle
a shape with three sides
against
next to something, touching it
follow
to go behind or after someone or something.
cliff
the high, steep side of a mountain or rock.
horizontal
parallel to the ground.
check
a pattern of regular squares in different colors, often on cloth or paper.
fall
to drop from a higher place to a lower place.
downhill
sloping down.
dot
a very small, round spot.