Opener 5 in 15 in 2 in 7 in 1. How much more area does  the bigger rectangle have? 11 cm 6 cm 12 cm 5.47 cm 2. What is the area of the  triangle? 9 mm.

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Presentation transcript:

Opener 5 in 15 in 2 in 7 in 1. How much more area does  the bigger rectangle have? 11 cm 6 cm 12 cm 5.47 cm 2. What is the area of the  triangle? 9 mm 5 mm 3. How much more area does the square have than the triangle?

Opener 5 in 15 in 2 in 7 in 1. How much more area does  the bigger rectangle have? 15*5 for the large piece and 7*2 for the small. 75-14= 61 The larger one has 61 square inches more than the smaller one.

Opener 2. What is the area of the triangle? 11 cm 6 cm 12 cm 5.47 cm 2. What is the area of the  triangle? Area is ½ base times the height. ½(12)(5.47) = 32.82 cm squared

Opener 3. How much more area does the square have than the triangle? 9 mm 5 mm 3. How much more area does the square have than the triangle? Area of Square: Area of Triangle: Square has 4 congruent sides so all sides measure 9mm. 9*9 = 81mm squared. Triangle is ½ base * height ½ (5)(9) = 22.5 mm squared 81mm squared – 22.5mm squared is 58.5mm squared.

Essential Question Learning Objective Why are the undefined terms important in geometry? I will identify and describe the undefined terms and use them to define other geometric objects.

. 1.1 Undefined Terms the undefined terms what you've learned: What is perimeter and area how to calculate perimeter and area of rectangles, squares, and triangles you should know: the undefined terms

Watch the video and take note(s) of the key terms (undefined terms). Geometry Watch the video and take note(s) of the key terms (undefined terms).

Point

Point Line

T m l a)Give two other names for b)Give another name for plane T c)Name three points that are collinear d)Name four points that are coplanar l T A B m D E C

a) Give another name for b) Name all rays with endpoint Q. Which of these rays are opposite rays? P T Q R S

Essential Question Learning Objective Why are the undefined terms important in geometry? I will identify and describe the undefined terms and use them to define other geometric objects.

Closure 1. What are the three undefined terms? 2. Give an example of each one, based on the picture below.