Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: In the diagram below, $BC$ is 8 cm.  In square centimeters, what is the area of triangle $ABC$?

[asy]
defaultpen(linewidth(0.7));
draw((0,0)--(16,0)--(23,20)--cycle);
draw((16,0)--(23,0)--(23,20),dashed);
label("8 cm",(8,0),S);
label("10 cm",(23,10),E);
label("$A$",(23,20),N);
label("$B$",(0,0),SW);
label("$C$",(16,0),SE);
[/asy]
user