Answer:
12
Step-by-step explanation:
12 x 12= 144
144/2= 72
option B
let the height=x
base=x
Area=½bh
72=½x•x
72×2=x²
144=x²
x=√144=12
C
New equation: y = -3(2y + 3) - 4
Distribute and simplify: y = -6y - 13
Add 6y: 7y = -13
I believe its 63°......,.,..,.,.,.,
A right angle should be the correct answer.
Brainliest if it is correct!!!