Brandon is making a bookcase using wooden boards that are 11/2 inches thick. The bookcase has 4 shelves. One shelf will form the top of the bookcase and one will be the bottom. (See the plan drawn below.) The space between shelves is 14 inches. What is the total height of the bookcase in feet?

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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(23*2)-12=x     x=34

step-by-step explanation:

just pick what you think i need more time let me know if this

step-by-step explanation: