Your class sponsors a benefit concert and prices the tickets at $8 each. dale sells 12 tickets, andy 16, morgan 17, and pat 13. compute the total revenue brought in by these four persons. notice that there are two ways to do the calculation.

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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it would be:

c.parallelogram.