The answer would be 4.875
Answer:
900
Step-by-step explanation:
(n – 2)180 where n is the number of sides
since this is a 7 sided polygon
(7-2) * 180
5 * 180
900
The last one is the answer
The differnce of 2 perfect cubes
remember
a³-b³=(a-b)(a²+ab+b²)
so