Question

Please help me with this im very confused

Answer 1

Answer:

Step-by-step explanation:

Angle sum property of triangle

1) Let the unknown angle = x

   x +  43 + 90 = 180

            x + 133 = 180

                      x = 180 -133

                     $\sf \boxed{\bf x = 47^\circ}$

2) x + 88 + 30 = 180

            x + 118 =180

                   x  = 180 - 118

                  $\sf \boxed{\bf x = 62^\circ}$

3) x + 98 + 40 = 180

            x + 138 = 180

                    x  = 180 - 138

                    $\sf \boxed{\bf x = 42^\circ}$