Do Now 35 How many triangles do you

Do Now…. . 3/5 How many triangles do you see? Name the triangles.

a) The triangles have a common base and equal heights (measure from C to D) a) Same reasoning, both have equal area. All will have the same area: they have Congruent bases and equal heights. a) 2 cm b) 4/3 cm c) 8 cm d) 40 cm

- One triangle inside another triangle This is an example of polygon (black) & a Can you copy identify the dilated (blue) nested triangles? ?

After your point & the two parallel lines, {P, lines line l, line m} - Uselabeling your lined paper to make the parallel : - If. Measure Q is any point on line m, then the point where the distances between the lines. PQ&intersects the point. line l is automatically the midpoint of PQ.

` n o i n t o a i r t t a s r t n s o n m o e m D e r h TTeeaacche You try it !! on Ti. Nspire

Ti. Nspire Experiment

Screen Shots

Discussion 3) a. The path is a new segment whose endpoints are the midpoints of BX and BY b. It is parallel to XY and half as long as XY. 4) The path traced by point M will be a segment RS, where R is on BX and S is on BY. RS || XY and R, M, S all divide BX, BA, BY, respectively, in the SAME RATIO

Do NOW …. 1 - 5 # 1 1. 3 p 1) 6 2) 16 3) 8 4) 12 5) 1/4

If you have time we can discuss This…… no biggie Measure AB & AD. What do you find? Measure AC & AE. What do you find?