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

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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

Student of the day! Block 4

Student of the day! Block 5

Student of the day! Block 6

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

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.

Naming Polygons concave and convex
Determine if each of the following is a polygon. Then state all the names that apply. A diagonal is …

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.

Finding Perimeter

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.

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

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