Answer:
a= 45 degrees
Step-by-step explanation:
all triangles if u add up their degrees equal 180
180-90=90 so the 2 angles together must equal 90
90/2=45
tienes que dividirla en 2
hmmmm bilmim weantremlo ?
its A you have the right one chosen
x²-12x+(-12/2)²=x²-12x+36=(x-6)²
