Answer:
20
Step-by-step explanation:
20
Given:
Sum of interior angle
To find:
Number of sides of a polygon
Solution:
Using sum of interior angles formula:
where "S" is the sum of interior angels and "n" is the number of sides of a polygon.
Divide by 180° on both sides.
Cancel common factor 180°.
Add 2 on both sides.
Switch the sides.
Therefore number of sides of a polygon is .
Answer:
153.94
Step-by-step explanation:
AB=πr2=π·72≈153.93804
Answer:
x-intercept: (6,0), (3,0)
Step-by-step explanation:
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