Geometry

3. that passes through two very specific points on a triangle: a vertex, or corner of a triangle, and its opposite side at a right, or 90-degree, angle
7. a triangle in which all three sides have the same length
10. When angle measures add up to 180 degrees.
13. a straight angle is defined as an angle that is equal to 180 degrees
15. The sum of two angles is 90°
16. Angles an angle of a polygon is formed by two adjacent sides

1. coplanar infinite straight lines that do not intersect at any point.
2. an angle is an angle which is greater than 90° and less than 180
4. two geometric objects are perpendicular if their intersection forms right angles at the point of intersection called a foot.
5. the highest point; the top or apex.
6. Numerical measure of a line's inclination relative to the horizontal.
8. Angles Angles that are parallel to the inner angles of a polygon but lie on the outside of it.
9. Side of a triangle
11. an angle that is exactly equal to 90 degrees
12. Pair Two adjacent angles that sum to 180 ∘ . They share a common vertex and a common arm.
14. An angle which is measuring less than 90 degrees