A non-negative root of a number is called Square Root
Answer:
The area is approximately 453 ft²
Step-by-step explanation:
Area of a circle = 
If
= 22/7, and r = 12 ft
Area = (22/7)×12²
= 3.143*144
= 452.592 ft²
≈ 453 ft²
39.5854 (this answer is rounded)
We will use the formula:
Area = 1/2*a*c*sinB
where a and c are the length of the sides and B is the angle between those 2 sides
Area = 1/2*5*8*sin42
Area = 20*sin42
sin 42 = <span>0.669130606359
Area = </span>13.38261212718
Rounded to the nearest tenth Area is equal to 13.4