Respuesta :

ferrybukantoro

Answer:

43°

Step-by-step explanation:

7x+1+9x-7=90

16x-6=90

16x=96

x=6

the minor arc AD = 7x+1 =7(6)+1

= 42+1=43°

MisterBrainly
  • 7x+1+9x-7+90=180
  • 16x+84=180
  • 16x=96
  • x=6

measure of AD

  • 7(6)+1
  • 43°