Evaluate the expression when a=3.

2a =

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

3+3+3+2*2*2+29*12 = 365

step-by-step explanation:

its kinda hard to answer this when we dont have all the information that we need.