A non-negative root of a number is called Square Root
Answer:

Area of triangle = 4 ft²
Area of rectangle = 
Area of irregular figure = 
Step-by-step explanation:




216 in^2 ( its 2 squared but that’s how I can write it on my phone)
All the sides of a cube are the same and there are 6 sides to a cube so if we have 36 as our are of the base then we just have to multiply that by 6
36 x 6= 216
The answer in this case would be D.