standard_description: Derive using similarity the fact that the length of the arc intercepted by an angle is proportional to the radius, and define the radian measure of the angle as the constant of proportionality; derive the formula for the area of a sector.
problem_activity: Task
{"table": [{"_attributes": {"class": ["regular"]}, "tbody": [{"tr": [{"th": [{"p": [{"strong": [{"_value": "Aunt Barb\u2019s Salad Dressing Recipe"}]}]}]}, {"td": [{"p": [{}], "ul": [{"li": [{"_value": "$\\frac13$ cup olive oil"}, {"_value": "$\\frac16$ cup balsamic vinegar"}, {"_value": "a pinch of herbs"}, {"_value": "a pinch of salt"}]}], "_value": "Makes 6 servings"}]}]}]}]}
How many cups of salad dressing will this recipe make? Write an equation to represent your thinking. Assume that the herbs and salt do not change the amount of dressing.
If this recipe makes 6 servings, how much dressing would there be in one serving? Write a number sentence to represent your thinking.


aligns: no