Mary Koerber Geometry in two dimensional and three dimensional ...
Mary Koerber Geometry in two dimensional and three dimensional ...
Mary Koerber Geometry in two dimensional and three dimensional ...
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Open<strong>in</strong>g ActivityFor the open<strong>in</strong>g activityall triangles add up to 180 °all squares add up to 360 °Developmental Activity1) 8cm 12cmPerimeter: 8+8+12+12=40cmArea: 12*8=962) Perimeter: 3.32+6.85+4.13=14.3Area: =4.9563) Perimeter: 7.27+8.86+14.97= 31.1cmArea: =22.46434) Square: 4cmArea: 4+4+4+4=16cmPerimeter:4*4=16Clos<strong>in</strong>g ActivityA photocopied h<strong>and</strong>out is given to accompany the clos<strong>in</strong>g activityto show how to fold the triangle.Homework AssignmentgivenP1P = 56 ftA = 84 ft 21.)P = 69 cmA = 300 cm? 22.)P = 50 mA = 120 m 23.)P = 40 mA = 120 m 21.)P = 26 ftA = 42 ft 22.)P = 30 kmA = 54 km 23.)P = 34 mmA = 66 mm 24.)P = 66.4 miA = 33.2 mi 2Koeber – Page 9
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