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Sagot :
Answer:
x = 80
Step-by-step explanation:
degrees in pentagon = 540
120 + 100 + (180-40) + (180-80) + x = 540
120 + 100 + 140 + 100 + x = 540
x = 80
Answer:
80°
Step-by-step explanation:
First, find the total interior angle by using the formula (n - 2) × 180
In this formula, n = the number of sides.
Find all the missing interior angles.
Add all the interior angles.
Subtract the that value from the total interior angle.
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