SWBAT: Use the interior angle measures of polygons
Lesson 7-1
Do Now:
SWBAT: Use the interior angle measures of polygons
Lesson 7-1
Example 1: Finding the Sum of
Extra Example 1: Finding the Sum of
Angle Measures in a Polygon
Angle Measures in a Polygon
MP# 1: Finding the Sum of Angle
Measures in a Polygon
Finding the Sum of Angle
Measures in a Polygon
Example 2: Finding the Number of
sides of a Polygon
Example 3: Finding the Number of
sides of a Polygon
SWBAT: Use the interior angle measures of polygons
Lesson 7-1
Example 4: Finding an Unknown
Example 5: Finding an Unknown
Interior Angle Measure
Interior Angle Measure
Example 6: Finding an Unknown
Interior Angle Measure
Example 7: Finding an Unknown
Interior Angle Measure
SWBAT: Use the interior angle measures of polygons
Lesson 7-1
LESSON PRACTICE
Find the sum of the measures of the interior angles of the indicated convex polygon.
1) Nonagon
2) 20-gon
The sum of the measures of the interior angles of a convex polygon is given. Classify
the polygon by the number of sides.
3) 2520°
4) 3240°
Find the value of x.
SWBAT: Use the interior angle measures of polygons
Lesson 7-1
LESSON PRACTICE
Find the measures of ∠X and ∠Y.
**C hallenge: Find the value of x.