Question

Brian has been making regular decagonal wooden puzzles. He wants to make some regular nonagonal puzzles next. By how many degrees does he need to increase or decrease each of the interior angle measure on his template to make the nonagonal puzzles

Answer 1

Brian has been making octagonal wooden puzzles. He wants to make some hexagonal puzzles next. By how much does he needs to increase or decrease the angle measure on his template to make the hexagonal puzzles?

A. increase by 15 degrees

B. decrease by 15 degrees

C. increase by 35 degrees

D. decrease by 35 degrees

Octagon = 360o/8angles = 45o/angle,

Hexagon = 360o/6angles = 60o/angle.

60 - 45 = 15o Increase.

hope this helps

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