3 years ago

What is the value of x? x =

Mathematics

1 answer:

forsale [732]3 years ago

8 0

Answer:

141

Step-by-step explanation:

It is a 7 sided shape

first find the sum of interior angles

7-2 x 180 = 900

so 122 +125 +131 +107+ x-15+x+x+7 = 900

477 +3x =900

3x= 423

x=141

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