• [tex]b. \: y = {90}^{o} - {15}^{o} = {75}^{o} [/tex]

    [tex]a. \: x = {90}^{o} - {45}^{o} = {45}^{o} [/tex]
    [tex]c. \: aoc = {90}^{o} - {37}^{o} = {53}^{o} [/tex]
    [tex]d. \: boc = {90}^{o} - {90}^{o} = 0[/tex]

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