A concession stand sold 180 food items at a school basketball game on Friday. It sold 57

slices of pizza, 78

hot dogs, and 45

hamburgers. What angle measure should be used for hot dogs in a circle graph of the data?

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

where's the diagram?

step-by-step explanation: