نقاط المكافآت
اكسب نقاطًا من خلال تفاعلك مع المُدرس أثناء الحصة وإجابتك عن الأسئلة، واستخدمها لاحقًا للحصول على خصم عند شراء حصص أخرى.
Lesson Plan: Interior Angles of a Polygon Mathematics • Second Year of Preparatory School
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to find the sum of the measures of the interior angles of a polygon given the number of its sides and the measure of an angle in a regular polygon.
Objectives
Students will be able to
- identify and classify polygons as concave or convex,
- divide a polygon into triangles in order to find the sum of its interior angles,
- find the sum of the interior angles of a polygon given its number of sides using the formula,
- find the measure of the interior angle of a regular polygon given its number of sides using the formula,
- find the measure of an angle in an irregular polygon given its number of sides and the measure of the other angles in the polygon,
- understand the relationship between interior and exterior angles and their sums in a polygon,
- find the measure of an exterior angle of a regular polygon given its number of sides,
- find the number of sides a regular polygon has given the measure of one of its interior angles.
Prerequisites
Students should already be familiar with
- the sum of the angles in a triangle,
- regular and irregular polygons,
- classifying polygons by their number of sides.
Exclusions
Students will not cover
- radians.
