Question

1. find d if $overline{ab}congoverline{bc}$. 10 b c a

Explanation:

Step1: Set up the equation

Since $\overline{AB}\cong\overline{BC}$, we have $10 = 5d - 2$.

Step2: Solve for $d$

Add 2 to both sides: $10+2=5d - 2+2$, which simplifies to $12 = 5d$. Then divide both sides by 5: $d=\frac{12}{5}=2.4$.

Answer:

$2.4$