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Find z

 

 Jul 23, 2020
 #1
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The total of the interior angles of any polygon is (n – 2) • 180o where n is the number of sides. 

 

The total of the interior angles of this (and every) pentagon is 540o so set up the addition. 

 

z + 2z + 117 + 64 + (2z –6) = 540 

 

5z + 175 = 540  

 

5z = 540 – 175

 

z = 73o  

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 Jul 23, 2020
edited by Guest  Jul 23, 2020

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