paper
Improved Answer:-
It has line symmetry
Yes. They have equal halves when bisected.
a square or rhombus
They are congruent angles.
Parallel lines cut by a transversal form congruent alternate interior angles.
Only as in the form of an isosceles trapezoid are its diagonals congruent.
Show that, if you have two triangles, two of the sides and the angle in between are congruent.
It takes 20 years for a folded mountain to form
The plural of half is halves.
In some cases, the folded crust can be pushed up high enough to form mountains.
Halves is a noun. It's the plural form of half.
Yes. They have equal halves when bisected.
congruent congruent
a square or rhombus
lithosphere plates collide forming the folded mountains!
china.
folded
The form would be: "If two segments have the same measure, then they are congruent."