Section 7 –5 Areas of Regular Polygons Objectives: To find the area of a regular polygon.
Geometry 7 th Grade 2010. 1. Which of these shapes can be created using two congruent isosceles triangles? 1.rhombus 2.rectangle 3.trapezoid 4.parallelogram.
9-4 Geometry in Three Dimensions Simple Closed Surfaces Regular Polyhedra Cylinders and Cones.
The two shaded faces of the prisms shown are its bases An altitude of a prism is a segment joining the two base planes and perpendicular to both The faces.
GEOMETRY: Chapter 12 12.3 Surface Area of Pyramids and Cones.
Holt McDougal Geometry 10-5 Surface Area of Pyramids and Cones 10-5 Surface Area of Pyramids and Cones Holt Geometry Warm Up Warm Up Lesson Presentation.
Introduction Circles have several special properties, conjectures, postulates, and theorems associated with them. This lesson focuses on the relationship.
Chapter 11 Section 11.1 – Space Figures and Cross Sections
Lesson 8-4 Areas of Regular Polygons. In this lesson you will… ● Discover the area formula for regular polygons Areas of Regular Polygons.
11.3 Surface Areas of Pyramids and Cones A pyramid is a polyhedron in which one face (the base) can be any polygon and the other faces (the lateral faces)
3.6 Perpendiculars & Distance 4.1 Classifying Triangles
Geometry Surface Area of Pyramids and Cones