Geometry, Student Edition
Geometry, Student Edition
1st Edition
ISBN: 9780078884849
Author: McGraw-Hill, McGraw Hill
Publisher: Glencoe/McGraw-Hill School Pub Co
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Chapter 6.1, Problem 42PPS
To determine

Paragraph proof to prove the Polygon Interior Angles Sum Theorem for octagons.

Expert Solution & Answer
Check Mark

Explanation of Solution

Given:

The figure is an octagon.

Calculation:

According to the Polygon Interior Angles Sum Theorem, the sum of the measures of interior angles of an n-sided convex polygon is (n2)180.

There are 8 sides in an octagon.

Therefore;

  Sum=(n2)180Sum=(82)180Sum=1080

Make all the diagonals in an octagon from one vertex.

Geometry, Student Edition, Chapter 6.1, Problem 42PPS

From the figure above, it can be seen that the octagon is split into 6 triangles.

The sum of the measures of interior angles in a triangle is 180.

According to Angle Addition Postulate, the sum of the interior angle measures will be:

  6(180)=1080

Chapter 6 Solutions

Geometry, Student Edition

Ch. 6.1 - Prob. 4CYUCh. 6.1 - Prob. 5CYUCh. 6.1 - Prob. 6CYUCh. 6.1 - Prob. 7CYUCh. 6.1 - Prob. 8CYUCh. 6.1 - Prob. 9CYUCh. 6.1 - Prob. 10CYUCh. 6.1 - Prob. 11CYUCh. 6.1 - Prob. 12PPSCh. 6.1 - Prob. 13PPSCh. 6.1 - Prob. 14PPSCh. 6.1 - Prob. 15PPSCh. 6.1 - Prob. 16PPSCh. 6.1 - Prob. 17PPSCh. 6.1 - Prob. 18PPSCh. 6.1 - Prob. 19PPSCh. 6.1 - Prob. 20PPSCh. 6.1 - Prob. 21PPSCh. 6.1 - Prob. 22PPSCh. 6.1 - Prob. 23PPSCh. 6.1 - Prob. 24PPSCh. 6.1 - Prob. 25PPSCh. 6.1 - Prob. 26PPSCh. 6.1 - Prob. 27PPSCh. 6.1 - Prob. 28PPSCh. 6.1 - Prob. 29PPSCh. 6.1 - Prob. 30PPSCh. 6.1 - Prob. 31PPSCh. 6.1 - Prob. 32PPSCh. 6.1 - Prob. 33PPSCh. 6.1 - Prob. 34PPSCh. 6.1 - Prob. 35PPSCh. 6.1 - Prob. 36PPSCh. 6.1 - Prob. 37PPSCh. 6.1 - Prob. 38PPSCh. 6.1 - Prob. 39PPSCh. 6.1 - Prob. 40PPSCh. 6.1 - Prob. 41PPSCh. 6.1 - Prob. 42PPSCh. 6.1 - Prob. 43PPSCh. 6.1 - Prob. 44PPSCh. 6.1 - Prob. 45PPSCh. 6.1 - Prob. 46PPSCh. 6.1 - Prob. 47PPSCh. 6.1 - Prob. 48PPSCh. 6.1 - Prob. 49HPCh. 6.1 - Prob. 50HPCh. 6.1 - Prob. 51HPCh. 6.1 - 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Prob. 57SPRCh. 6.3 - Prob. 58SRCh. 6.3 - Prob. 59SRCh. 6.4 - Prob. 1ACYPCh. 6.4 - Prob. 1BCYPCh. 6.4 - Prob. 2CYPCh. 6.4 - Prob. 3CYPCh. 6.4 - Prob. 4CYPCh. 6.4 - Prob. 1CYUCh. 6.4 - Prob. 2CYUCh. 6.4 - Prob. 3CYUCh. 6.4 - Prob. 4CYUCh. 6.4 - Prob. 5CYUCh. 6.4 - Prob. 6CYUCh. 6.4 - Prob. 7CYUCh. 6.4 - Prob. 8CYUCh. 6.4 - Prob. 9CYUCh. 6.4 - Prob. 10PPSCh. 6.4 - Prob. 11PPSCh. 6.4 - Prob. 12PPSCh. 6.4 - Prob. 13PPSCh. 6.4 - Prob. 14PPSCh. 6.4 - Prob. 15PPSCh. 6.4 - Prob. 16PPSCh. 6.4 - Prob. 17PPSCh. 6.4 - Prob. 18PPSCh. 6.4 - Prob. 19PPSCh. 6.4 - Prob. 20PPSCh. 6.4 - Prob. 21PPSCh. 6.4 - Prob. 22PPSCh. 6.4 - Prob. 23PPSCh. 6.4 - Prob. 24PPSCh. 6.4 - Prob. 25PPSCh. 6.4 - Prob. 26PPSCh. 6.4 - Prob. 27PPSCh. 6.4 - Prob. 28PPSCh. 6.4 - Prob. 29PPSCh. 6.4 - Prob. 30PPSCh. 6.4 - Prob. 31PPSCh. 6.4 - Prob. 32PPSCh. 6.4 - Prob. 33PPSCh. 6.4 - Prob. 34PPSCh. 6.4 - Prob. 35PPSCh. 6.4 - Prob. 36PPSCh. 6.4 - Prob. 37PPSCh. 6.4 - Prob. 38PPSCh. 6.4 - Prob. 39PPSCh. 6.4 - Prob. 40PPSCh. 6.4 - Prob. 41PPSCh. 6.4 - 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Prob. 1CYUCh. 6.6 - Prob. 2CYUCh. 6.6 - Prob. 3CYUCh. 6.6 - Prob. 4CYUCh. 6.6 - Prob. 5CYUCh. 6.6 - Prob. 6CYUCh. 6.6 - Prob. 7CYUCh. 6.6 - Prob. 8PPSCh. 6.6 - Prob. 9PPSCh. 6.6 - Prob. 10PPSCh. 6.6 - Prob. 11PPSCh. 6.6 - Prob. 12PPSCh. 6.6 - Prob. 13PPSCh. 6.6 - Prob. 14PPSCh. 6.6 - Prob. 15PPSCh. 6.6 - Prob. 16PPSCh. 6.6 - Prob. 17PPSCh. 6.6 - Prob. 18PPSCh. 6.6 - Prob. 19PPSCh. 6.6 - Prob. 20PPSCh. 6.6 - Prob. 21PPSCh. 6.6 - Prob. 22PPSCh. 6.6 - Prob. 23PPSCh. 6.6 - Prob. 24PPSCh. 6.6 - Prob. 25PPSCh. 6.6 - Prob. 26PPSCh. 6.6 - Prob. 27PPSCh. 6.6 - Prob. 28PPSCh. 6.6 - Prob. 29PPSCh. 6.6 - Prob. 30PPSCh. 6.6 - Prob. 31PPSCh. 6.6 - Prob. 32PPSCh. 6.6 - Prob. 33PPSCh. 6.6 - Prob. 34PPSCh. 6.6 - Prob. 35PPSCh. 6.6 - Prob. 36PPSCh. 6.6 - Prob. 37PPSCh. 6.6 - Prob. 38PPSCh. 6.6 - Prob. 39PPSCh. 6.6 - Prob. 40PPSCh. 6.6 - Prob. 41PPSCh. 6.6 - Prob. 42PPSCh. 6.6 - Prob. 43PPSCh. 6.6 - Prob. 44PPSCh. 6.6 - Prob. 45PPSCh. 6.6 - Prob. 46PPSCh. 6.6 - Prob. 47PPSCh. 6.6 - Prob. 48PPSCh. 6.6 - Prob. 49PPSCh. 6.6 - Prob. 50PPSCh. 6.6 - Prob. 51PPSCh. 6.6 - Prob. 52PPSCh. 6.6 - Prob. 53PPSCh. 6.6 - Prob. 54PPSCh. 6.6 - Prob. 55PPSCh. 6.6 - Prob. 56PPSCh. 6.6 - Prob. 57PPSCh. 6.6 - Prob. 58PPSCh. 6.6 - Prob. 59PPSCh. 6.6 - Prob. 60PPSCh. 6.6 - Prob. 61PPSCh. 6.6 - Prob. 62PPSCh. 6.6 - Prob. 63PPSCh. 6.6 - Prob. 64PPSCh. 6.6 - Prob. 65HPCh. 6.6 - Prob. 66HPCh. 6.6 - Prob. 67HPCh. 6.6 - Prob. 68HPCh. 6.6 - Prob. 69HPCh. 6.6 - Prob. 70STPCh. 6.6 - Prob. 71STPCh. 6.6 - Prob. 72STPCh. 6.6 - Prob. 73STPCh. 6.6 - Prob. 74SPRCh. 6.6 - Prob. 75SPRCh. 6.6 - Prob. 76SPRCh. 6.6 - Prob. 77SPRCh. 6.6 - Prob. 78SPRCh. 6.6 - Prob. 79SPRCh. 6.6 - Prob. 80SPRCh. 6.6 - Prob. 81SPRCh. 6.6 - Prob. 82SRCh. 6.6 - Prob. 83SRCh. 6.6 - Prob. 84SRCh. 6 - Prob. 1GRFCCh. 6 - Prob. 2GRFCCh. 6 - Prob. 3GRFCCh. 6 - Prob. 4GRFCCh. 6 - Prob. 5GRFCCh. 6 - Prob. 6GRFCCh. 6 - Prob. 7GRFCCh. 6 - Prob. 8GRFCCh. 6 - Prob. 9GRFCCh. 6 - Prob. 1MCQCh. 6 - Prob. 2MCQCh. 6 - Prob. 3MCQCh. 6 - Prob. 4MCQCh. 6 - Prob. 5MCQCh. 6 - Prob. 6MCQCh. 6 - 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