What is the length of side BC of the triangle?
I think it could be 3, but I'm not sure.
Since m∠B = m∠C , triangle ABC is isosceles and
the length of side AC = the length of side AB
x + 8 = 2x - 1 Now we can find what x is.
Subtract x from both sides of the equation.
8 = x - 1
Add 1 to both sides.
9 = x
And..
the length of side BC = 3x - 3
Now we know that x = 9
the length of side BC = 3(9) - 3
the length of side BC = 24
Since m∠B = m∠C , triangle ABC is isosceles and
the length of side AC = the length of side AB
x + 8 = 2x - 1 Now we can find what x is.
Subtract x from both sides of the equation.
8 = x - 1
Add 1 to both sides.
9 = x
And..
the length of side BC = 3x - 3
Now we know that x = 9
the length of side BC = 3(9) - 3
the length of side BC = 24