Triangles

5. means they have the same shape and size.
8. space between two intersecting lines or sides of a shape. In a triangle, angles are formed where the sides meet
9. If two sides and the included angle of one triangle are equal to the corresponding sides and included angle of another triangle, then the triangles are congruent.
10. a side inbetween 2 angles or an angle inbetween 2 sides
11. one of the lines that make up the triangle's boundary
12. shape with three sides
14. If the hypotenuse and one leg of one right triangle are equal to the hypotenuse and corresponding leg of another right triangle, then the triangles are congruent.
15. two sides that form the right angle.

1. side opposite the right angle. It is the longest side of the triangle.
2. way to express that two shapes or figures are congruent
3. If two angles and a non-included side of one triangle are equal to the corresponding angles and non-included side of another triangle, then the triangles are congruent.
4. a side not inbetween 2 angles or an angle not inbetween 2 sides
6. triangle that has one angle measuring 90 degrees
7. If two angles and the included side of one triangle are equal to the corresponding angles and included side of another triangle, then the triangles are congruent.
9. If all three sides of one triangle are equal to the corresponding sides of another triangle, then the triangles are congruent.
13. matching or equivalent parts in different shapes or figures that can be compared.