Answer: BC=3
Step-by-step explanation: Set the two side lengths equal to each other and solve.
Answer:
BC = 20 units.
Step-by-step explanation:
This triangle has 3 equal sides.
so: -y + 23 = 6y + 2
23 - 2 = 6y + y
21 = 7y
y = 3.
So each side is 6(3) + 2 = 20 units long.
