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algol [13]
3 years ago
15

Help me with #2 and #3 please

Mathematics
1 answer:
timurjin [86]3 years ago
7 0
2 An angle in a regualr quadrilateral = 90 degrees

3. if  exterior angle = 40 degrees then the number of sides in the plygon

= 360/40  = 9 sides 

So its a  nonagon.
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