Honors Geometry Unit 5 Notes
Proofs
- the sum of the measures of the interior angles of a triangle is $180^{\circ}$
- the base angles of isosceles triangles are congruent
- the segment joining the midpoints of two sides of a triangle is parallel to the third side and half the length
- a line parallel to one side of a triangle divides the other two proportionally, and conversely
- the Pythagorean Theorem using triangle similarity
- both necessary and sufficient conditions for parallelograms and other quadrilaterals as well as relationships among kinds of quadrilaterals.
Activities
- Find the Centroid
- Balance cutout on the centroid
Terms
- Median
- Quadrilateral
- Parallelogram
- Polygon
- Regular Polygon