~Shoto Todoroki here~
Answer:
( n − 2 ) × 180
Step-by-step explanation:
The formula for calculating the sum of interior angles is ( n − 2 ) × 180 ∘ where is the number of sides. All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: interior angle of a polygon = sum of interior angles ÷ number of sides.
hope this helps :))
If we don't count the letters,

The answer would be: 4 3/8! Hope this helped! Brainliest is always appreciated!
If this talks about the diagonal of the flooring then it is 9m