Geometry/Trig 2Name __________________________ Section 11-4 NotesDate _______________ Block ______ Regular Polygon:______________________________ _____________________________ Regular Triangle : _______________________________________________________ Regular Quadrilateral: ____________________________________________________ Regular Parallelogram: ____________________________________________________ The _________ of a regular polygon is the __________ of the circumscribed circle. The _________ of a regular polygon is the distance from the center to the __________. The __________________ of a regular polygon is an angle formed by two __________ drawn to two ______________ vertices. The _________ of a regular polygon is the perpendicular distance from the center of a polygon to a _______. Formula for Area of Regular Polygons a = __________ p = __________ Example 1: Find the area and perimeter of a regular octagon with side of 5 and apothem of 3. Area = __________ Perimeter = __________ Area and Perimeter of Regular Polygons Example 2: Find the area and perimeter of a regular hexagon with side of 12. Area = __________ Perimeter = __________

Example 3: Find the area and perimeter of a regular hexagon with apothem of 6. Geometry/Trig 2 Section 11-4 Notes Area = __________ Perimeter = __________ Example 4: Find the area of a regular triangle with a side length of 8. In the previous example, you could also have Area = __________ Perimeter = __________

Area = __________ Perimeter = __________ Example 5: Find the area and perimeter of a regular quadrilateral with a radius of 6. Area = __________ Perimeter = __________ Example 6: Find the area and perimeter of a regular hexagon with apothem of 5. Geometry/Trig 2 Section 11-4 Notes In the previous example, you could also have