Math, asked by aryankher98, 1 month ago

Pls answer these 2 very important

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Answered by educatofficial

1

Step-by-step explanation:

$31. \: \: given \: exterior \: angle \: c = {125}^{0} \\ we \: know \: that \: sum \: of \: exterior \: and \: interior \: angle \: = {180}^{0} \\ angle \: c \: = {180}^{0} - {125}^{0} = {55}^{0} = \: angle \: b \: \\ angle \: a + angle \: b+ angle \: c = {180}^{0} \\ {55}^{0} + {55}^{0} + \: angle \: a = 180 \\ therefore \: angle \: a = {125}^{0}$

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