The way to calculate the perimeter for this particular shape would be 3x15 being as there is three 15 inch sides and when we do the multiplication we get 45 so the perimeter is 45inches have a nice day and please mark brainliest
You add all of the numbers up each row and divide by how many there are so: row one: if u add it all up it would be 10 then divide by how many there are
