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10.3 and 10.5 Areas of Regular Polygons & Trigonometry and Area. Regular Polygons. Regular polygons:. -all sides congruent. -all angles congruent. -convex. We can center any regular polygon inside of a circle:. radius – the distance from the center to a vertex.
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10.3 and 10.5 Areas of Regular Polygons&Trigonometry and Area
Regular Polygons Regular polygons: -all sides congruent -all angles congruent -convex We can center any regular polygon inside of a circle: radius – the distance from the center to a vertex apothem – perpendicular distance from the center to a side
Finding Angle Measures Regular pentagon:
Finding Angle Measures Part of a regular octagon:
Areas of Regular Polygons THEOREM 10.6 – Area of a Regular Polygon The area of a regular polygon is half the product of the apothem and the perimeter
Areas of Regular Polygons Regular decagon: Find the area of a regular pentagon with 11.6-cm sides and an 8-cm apothem.
Areas of Regular Polygons Regular hexagon: 10mm
Areas of Regular Polygons Regular pentagon:
Areas of Regular Polygons Regular octagon:(Find perimeter and area)
Areas of Regular Polygons Find the area of a regular nonagon with sides of length 6 cm.
10.3 and 10.5 HW:WS: Pract. 10.3 p. 561#1-4, 21-26