Answer:
144.5cm
Step-by-step explanation:
Since it's a square, all sides should be equal so you just need to divide 289 by 2(are of a square is side times side)
When you divide something by 10, yo move the decimal place one place to the left so exg
20.0/10=2.0
so divide by 1000 means move the decimal place 3 places to the left so if you had 20,000.0/1000=20.0 so
6.82/1000=0.00682
The model hight for the door will be 27 centimeters