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Published byFrancine Higgins Modified over 6 years ago

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TODAY IN GEOMETRY… STATs for Ch. 7 Test Learning Target : 8.1 Find angle measures in polygons Independent Practice Ch.7 RETAKES

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HOW DID YOU “SHAPE” UP?? Results for ALL of my Geometry classes: GRADE NUMBER OF STUDENTS WHO TOOK THE CH.7 TEST (30 pts.) 1 ST PERIOD3 RD PERIOD5 TH PERIOD6 TH PERIODTOTAL A61012735 B347620 C621413 D04228 F352212 Avg.23.8623.0425.0423.8123.94

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THE NAMES OF SHAPES: Polygons are named by the number of given sides. NUMBER OF SIDESNAME OF POLYGON 3 4 5 6 7 8 9 10 11 12 n TRIANGLE QUADRILATERAL PENTAGON HEXAGON HEPTAGON OCTAGON NONAGON DECAGON HENDECAGON DODECAGON n-GON

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PRACTICE: Name the polygon according to the number of sides. 4-SIDES QUADRILATERAL 7-SIDES HEPTAGON 5-SIDES PENTAGON 10-SIDES DECAGON

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INTERIOR ANGLES: angles inside the polygon

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EXAMPLE: Find the sum of the interior angles of the hexagon below.

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PRACTICE:

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EXAMPLE: Find the value of x.

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EXTERIOR ANGLES: angles outside the polygon

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HOMEWORK #1: Pg.510: 3-16, 19, 24-26

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