7.5 Areas of Regular Polygons and Circles Warm-up (IN) CSAP Constructed Response Learning Objective: To use area formulas to find areas of real world objects.

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Presentation transcript:

7.5 Areas of Regular Polygons and Circles Warm-up (IN) CSAP Constructed Response Learning Objective: To use area formulas to find areas of real world objects

Notes Learning Objective: To use area formulas to find areas of real world objects EX 1 – Find the area of the regular hexagon. 52 in 26 in 52 in

Learning Objective: To use area formulas to find areas of real world objects Area of a regular n-gon b Apothem -The distance from the center of a regular polygon to a side a Area of a regular n-gon

EX 2 – the apothem of a regular octagon is 4.8 and the distance from the center to each vertex is 6. Find the area of the octagon. Learning Objective: To use area formulas to find areas of real world objects 4.8 6

Learning Objective: To use area formulas to find areas of real world objects Circles! Circumference of a circle Area of a circle EX 3 – the figure is a square inscribed in a circle. Find the area of the shaded region. 24 cm Area of circle – Area of square

CKC p. 370!! On separate paper!

HW – p. 371 #1-9, 20-23,26 Out – What is an apothem and what is it used for? Summary – So, I was thinking… POW!!