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Warm-up

Warm-up. Find the coordinates of the midpoint. (2,0) and (0,2) (5,8) and (-3,-4) Find the slope of the line through the given points. (3,11) and (3,4) (-2,-6) and (4,-9) (4,3) and (8,3). Extra Credits – 2 points towards the unit test. Due Date: Monday Dec. 12.

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Warm-up

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  1. Warm-up • Find the coordinates of the midpoint. • (2,0) and (0,2) • (5,8) and (-3,-4) • Find the slope of the line through the given points. • (3,11) and (3,4) • (-2,-6) and (4,-9) • (4,3) and (8,3)

  2. Extra Credits – 2 points towards the unit test. Due Date: Monday Dec. 12 • Find the orthocenter of the triangle JKL J(7, 10), K(5, 2), L(3, 6) Solve it algebraically!!!

  3. Find the midpoint (N) of segment KL • Find the midpoint (M) of segment JL • Find the distance of segment KJ • Find the distance of segment NM • Find the slope of KJ • Find the slope NM

  4. Midsegment of a triangle is a segment that connects the midpoints of two sides of a triangle A D G B C O

  5. Theorem 5.9 MidsegmentTheroem • The segment connecting the midpoints of two sides of a triangle is parallel to the third side and is half as long. A D G B C

  6. Practice problems • Show that midsegment PQ is parallel to segment DE and half as long. • Segments JK and KL are midsegments of triangle ABC. Find JK and AB

  7. What are the coordinates of Q? of R? • Why is • What is MP? What is QR?

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