The resultant displacement of the Polly protractor is 25 km.
The displacement of an object is the change in the position of the object.
The displacement of the Polly protractor is calculated as follows;
d² = 15² + 20²
d = √(15² + 20²)
d = 25 km
Thus, the resultant displacement of the Polly protractor is 25 km.
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The complete question is below:
Find the resultant displacement of the Polly protractor.