standard_description: Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.
problem_activity: Problem 1
Fill in the blank to make the statement true.
$$\frac{3}{4}>\frac{3}{\square}$$
Problem 2
a.   Compare
$$5\over 6$$
and
$$5\over 8$$
. Use <, >, or = to record your comparison.
b.   Explain how you know your answer in Part A is correct. Draw a picture or a number line to support your reasoning.


aligns: no