2020 Math Kangaroo Levels 9-10 Problem #29
2020 Math Kangaroo Levels 9-10 Problem #29 29. A zig-zag line starts at the point A, at one end of the diameter AB of a circle. Each of the angles between the zig-zag line and the diameter AB is equal to 𝛼 as shown. After four peaks, the zig-zag line ends at the point B. What is the measure of angle 𝛼? (A) 60° (B) 72° (C) 75° (D) 80° (E) Another answer Thank you for watching and please subscribe if you would like to see more videos!
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2020 Math Kangaroo Levels 9-10 Problem #30
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2020 Math Kangaroo Levels 9-10 Problem #22
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2021 Math Kangaroo Levels 9-10 Problem #25
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Math Kangaroo 9-10, 2021
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