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Unit 4 Vocabulary

Unit 4 Vocabulary. Midsegment. Segments connecting the midpoints of triangles Creates 4 congruent triangles within the triangle. Isosceles Triangles. Base side: Base angles:. Centroid. POC of the medians. Median. Segment connecting the midpoint of a side to the opposite vertex. .

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Unit 4 Vocabulary

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  1. Unit 4 Vocabulary

  2. Midsegment • Segments connecting the midpoints of triangles • Creates 4 congruent triangles within the triangle

  3. Isosceles Triangles • Base side: • Base angles:

  4. Centroid • POC of the medians

  5. Median • Segment connecting the midpoint of a side to the opposite vertex.

  6. Altitude • Segment from a vertex that intersects the opposite side at a right angle. “Height”

  7. Orthocenter • POC of the altitudes

  8. Constructing Altitude (or a perpendicular line through a point) • From the point, make an arc that intersects the line twice. • Now bisect the segment you made on the line. • Draw in the perpendicular line—remember, it should intersect the point and the two “fish tails”.

  9. Midsegments • The midsegment joining the midpoints of two sides are parallel to the 3rd side of the triangle. • They are also half the length of that side.

  10. Regular Polygons • Polygons that are equilateral (all sides are congruent) and equiangular (all angles are congruent)

  11. Finding the measure of one angle. Formula:

  12. Exterior Angles • Interior and exterior angles are supplementary. • I + E = 180 • Formula:

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