Answer:
The total area is 444 ft².
Step-by-step explanation:
First you multiply 18 by 10 for one of the walls you get 180*2 since you have two walls with the same dimension. Next you do 12*7 to get 84. Last you would add 84 to 360 and get 444 ft²
The coefficient is 9
(a)(b)(c)+(a)(2c)(2a)+(2b)(b)(c)+(2b)(2c)(2a)
abc+4ca^2+2cb^2+8abc
9abc+4ca^2+2cb^2
93 degrees
The angles in a triangle add to be 180 so
180-56-31=x
x=93
