:
The area.
She is trying to find how to cover it, which would be the area of the floor.
Answer:
1080°
Step-by-step explanation:
formula to find the sum of interior angles of a polygon is (n-2)×180
octagon has 8 sides so n=8
(8-2)×180
6×180
=1080°
1. Neither
2. Arithmetic
3. geometric
(I may be wrong, ask this question again sometime. We just learned this in math class and 99% sure I'm right.)
