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Jasten
07.03.2020 •
Mathematics
Each interior angle of a regular polygon is 120 greater than each exterior angle calculate the number of sides
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Ответ:
Step-by-step explanation:
Let exterior angle be x
Interior angle = x + 120
Interior angle and exterior angle are linear pair
x +x +120 = 180
2x + 120 = 180
2x = 180 - 120
2x = 60
x = 60/2
x = 30°
No. of sides = 360°/measurement of exterior angle
= 360/30
= 12 sides
Ответ:
x = 75°
Step-by-step explanation:
So 105° is given to us. And it is a straight line. 180° - 105°= 75°. Which means F is 75° and x is also 75°. This is because from EH and AD is a pair of corresponding lines we know this as there is a small arrow which shows us this.