CPM Homework Help : GC Problem 4-36

Find the missing side length for each triangle. Use the tangent button on your calculator to help.

Hint:

See the Math Notes box in Lesson 4.1.4 for additional help.

Answer (a):
$\text{tan}(8º) =\frac{\Delta y}{\Delta x} = \frac{\textit{t}}{82}$
$\frac{\text{tan}(8º)}{1} = \frac{t}{82}$
$82(\tan8º)=t$
$t\approx11.524$

Hint (c):
Rotate the triangle so that $68º$ is the slope angle, then use the same method as in parts (a) and (b).