A
shape
with
three
sides
and
angles
is
called
a
____________________
.
A
four
-
sided
polygon
,
whose
angles
add
up
to
360
degrees
is
called
a
____________________
.
A
____________________
is
the
point
where
two
lines
meet
.
A
triangle
is
a
____________________
with
three
sides
.
The
angles
in
a
triangle
add
up
to
____________________
degrees
.
