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Published byHilary Sullivan Modified over 4 years ago

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**Show how it is possible for two triangles to intersect in one **

Warm-up 1.4 Polygons Draw pictures to go with the description given. Show how it is possible for two triangles to intersect in one point, two points, three points, four points, five points, or six points, but not seven points. Show how they can intersect in infinitely many points

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**Student of the day! Block 4**

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**Student of the day! Block 5**

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**Student of the day! Block 6**

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1.3 H.W. Answers to pg 51 and 52 # 1- 24

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More 1.3 Homework Answers

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Remaining Answers

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**A ____________ is a regular quadrilateral.**

1.4 Polygons and Midpoint A polygon is a closed plane figure made up of at least 3 lines. Names of polygons: A_________________ is a polygon in which all angles and sides are congruent. It is equilateral and equiangular. A ____________ is a regular quadrilateral.

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**Naming Polygons concave and convex**

Determine if each of the following is a polygon. Then state all the names that apply. A diagonal is …

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Congruent Polygons If polygons are congruent then the corresponding sides and angles are congruent. When stating two polygons are congruent the order of the letters matter.

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Finding Perimeter

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**Coordinate Grid Problems**

Example 5: What is the perimeter of a rectangle with vertices at A (-5, 1) B ( 0,1) C (-5, -3) and D (0, -3) Example 6: Plot the points F (-8, 0) G (0,8) and H (2, 0). Connect them to make a triangle. Find the midpoints of each of the three sides. Label the points and connect them.

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**Common Mistakes on Quiz**

Homework: Pg 56 – 58 (1.4) #1- 20 #1- 3, #11 and 12 2 pts each

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