SoftballG1rl
SoftballG1rl SoftballG1rl
  • 23-05-2018
  • Mathematics
contestada

a) Find the value of x.

b) Find the value of the exterior angle that is adjacent to the interior angle x + 20°.

a Find the value of x b Find the value of the exterior angle that is adjacent to the interior angle x 20 class=

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sarkhan2018
sarkhan2018 sarkhan2018
  • 01-06-2018
It is a pentagon. The sum of all angles of pentagon is 540°.

A) [tex](x+10)+(2x-10)+(x-25)+(x+20)+(x-13)=540[/tex]
    [tex]x=93[/tex]

B) x+20 = 93+20 = 113°. The adjacent exterior angle is 180 - 113 = 67°
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