CPM Homework Help : CCG Problem 4-21

Examine the figure at right, which is not drawn to scale. Which is longer, $\overline{AB}$ or $\overline{BC}$ ? Explain your answer.

Step 1:

By the slope ratio for $11º$ : $\frac{10}{AB}=\frac{1}{5}$

By the slope ratio for $68º$ : $\frac{10}{BC}=\frac{5}{2}$

Step 2:

Given the above information, solve for $\overline{AB}$ and $\overline{BC}$ to determine which is longer.