10.3 Areas of Regular Polygons

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Presentation transcript:

10.3 Areas of Regular Polygons By Brit Caswell 10.3 Areas of Regular Polygons

A little vocab… Radius – From The center to the vertex Apothem – the Perpendicular Distance from the Center to a side

Pg 629, #1 Find the measure of each marked angle on this Regular pentagon. Pg 629, #1

Theorem 10-6 The area of a regular polygon is half of the product of the apothem and the perimeter.

Pg 632, #14, TPS Find the area of the regular polygon, given the apothem, a, and the side length, s. Nonagon, a=27.5 in, s=20 in.

Find the area. Pg 632, #17

Pg 633, #32 A regular hexagon has a perimeter 120 m. Find its area.

Exit Ticket Find the area of a regular octagon with an apothem 60.4in. and a side length 50in.