Question

find 'x' in the following figures​

Answer 1

Answer:

x=67

Step-by-step explanation:

c=180-123

=57(linear angle)

B or x =180-56+53 (sum of interior angles is equal to 180 degree)

=180-113

=67

Answer 2

$\pink{ \boxed{\boxed{\begin{array}{cc} \maltese \bf \: \:we \: know \: that \downarrow\\ \\ \sf \: In \: a \: triangle, \: the \: exterior \: angle \: is \: always \: \\ \sf \: equal \: to \: the \: sum \: of \: the \: interior \: opposite \: angle. \: \\ \\ \bf \: here \: \\ \bf \: exterior \: angle \: \: = {123}^{ \circ} \\ \bf \: interior \: opposite \: angle \: \: are \: \: \: = x \: \: and \: \: {56}^{ \circ} \\ \\ \sf \: according \: to \: the \: question \: \\ \\ \bf \: x + 56 = 123 \\ \bf \implies \: x = 123 - 56 \\ \bf \implies \: \blue{ x = {67}^{ \circ}} \: \end{array}}}}$