We know that
The formula to <span>find the sum of the interior angles of a regular polygon is
</span>(n - 2)*180°
where n is the number of sides
so
clear n
(n - 2)*180° = 720°-----> (n-2)=720/180---> n-2=4----> n=6 sides
the answer is
6 sides
The base area will be dilated: 54 x 54 times
The height is dilated: 54 times.
Current volume: 6 x 8
= 48 cm³
New volume: 48 x 54 x 54 x 54
New volume = 7,558,272 cm³
Set up a proportion:
5/200 = 7/x
Cross multiply:
200 * 7 = 5 * x
1400 = 5x
Divide 5 to both sides:
x = 280
5 times 1 + 1 times 1/10 + 5 times 1/100 + 3 times 1/1000
c) 4/5 .....................