Find the measure of each angle plz do 15 and 16

15) 55°

16) 90°

Step-by-step explanation:

15)

55° + 75° + x = 180°

x = 50°

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50° + 60° + x = 180°

x = 70°

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70° + 55° + ? = 180°

? = 55°

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16)

55° + 90° + x = 180°

x = 35°

__

35° + x = 90°

x = 55°

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55° + 35° + ? = 180°

? = 90°

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

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