Y-y=m(x-x). That is the formula for point slope form. You want to take the two y axis and subtract them from each other and m is your slope. Then u take the x axis put them in parentheses and then you u solve with pemdas from the there.
Area of classroom (rectangular ) = length × width ( also known as breadth )
so....... 12 × 7 = 84 meter squared
HOPE IT HELPED !!
I think it is a rectangle..........But i'm not sure what are your options
