Answer:
area = 396 ft²
Step-by-step explanation:
area = (12 x 19) +(19 x 6) + (9 x 6) = 396 ft²
1.99
x=√-16
Since x^2+16=0
Substrate 16
X^2=-16
Square root of both sides
X=√-16
So therefore the final answer is