Question

Please answer this question?​

Answer 1

a+40°+30°=360°

a+40°+30°=360°a+70°=360°

a+40°+30°=360°a+70°=360°a=360°−70°

a+40°+30°=360°a+70°=360°a=360°−70°a=290°.

Answer 2

Answer:

Answer: (a). 290°

${ \tt{a + 40 \degree + 30\degree = 360\degree}} \\ \\ { \tt{a + 70\degree = 360\degree}} \\ \\ { \tt{a = 360\degree - 70\degree }} \\ \\ { \boxed{ \tt{ \: \: a = 290\degree}}}$