A number decreased by three square is: (where x is the number)
x - 3^2
Answer:
180º
Step-by-step explanation:
All the interior angles add up to 180º degrees.
X+x+54=180
2x+54=180
2x=126
x=63
63+54=117
one angle is 63, the other is 117
A=Bxt+C
A-C=Bxt+C-C
A-C=Bxt
A/Bt - C/Bt = x
