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Answer:
The sum of the page numbers on the facing pages of a book is 81 What are the page numbers
Step-by-step explanation:
The page numbers on facing pages of a book will always be consecutive. Therefore, let the left-hand page be denoted by x. Then the right-hand page would be x+1. x = 40.
Answer:
Jessie has 105 baseball figurines
To find the interior angle, you use the formula ((n - 2) x 180) / n (where n is the number of sides).
So, ((20 - 2) x 180) / 20 = 162
To find the exterior angle, you merely take away the interior angle from 180.
180 - 162 = 18, so the exterior angle is 18 degrees
Another, easier, way is to just divide 360 by n. All exterior angles always add to 360. Thus, 360 / 20 = 18 degrees