The school bought 16 calculators.
504/31.50 =16
Answer:
b = 34°
Step-by-step explanation:
b + 115° + 31° = 180°
b + 146° = 180
b = 180° - 146°
b = 34°
The exponent indicates how many times the base is used as a factor
Sum of all the interior angles of a n-gon = (n-2) x 180
Sum of all the interior angles of a 72-gon = (72-2) x 180 = 12600°
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Answer : 12600°
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