4 years ago

Please help, will give brainliest!!

Mathematics

1 answer:

bogdanovich [222]4 years ago

5 0

Answer:

15°

Step-by-step explanation:

sum of exterior angles=360°

each angle=360/24=15°

20 ×n=360

n=360/20=18

18 sides

(n-2)×180=174n

180n-174n=360

6 n=360

n=360/6=60

number of sides =60

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