Question

Find the sum of the angle measures of a
dodecagondodecagon.

Answer 1

If you meant a dodecagon, you can find out easily.
The equation for the total measure of the inner angles of a shape is:
(n - 2)180° = x where n is the number of sides.
Since a dodecagon has 12 sides, n = 12.

`(n-2)180=x\\ (12-2)180=x\\ (10)180=x\\`
x = 1800°