The sum of the interior angles of any polygon is given by (n-2)180°, where n is the number of sides.
Also sum of all the exterior angles of any polygon is 360°
Given (n-2)180° = 3(360°)
=> n-2 = 6
=> n = 8.
Hence the number of sides of a polygon is 8
Answer:
Center (4, -13)
Radius = 17
Step-by-step explanation:
Circle equation: 
(h, k) is the center of the circle and the r is the radius.

h = 4, k = -13, r = 17
The answer is 399,997. 2+2= 4, the miliply 100,000 you get 400,000 then you subtract 3 which gives you 399,997. Now can you help me with my math question please?