Respuesta :

mhanifa

Answer:

  • Exterior angle is same as the sum of non-adjacent interior angles.

#18

  • m∠3 = 43° + 22° = 65°

#20

  • 123° = 90° + m∠4 ⇒
  • m∠4 = 123° - 90° = 33°
ItzTds

18) Solution

By using exterior angle is same as the sum of non adjacent interior angles.

→ m<3 = 43° +22°

→ 65°

20) Solution

By using exterior angle is same as the sum of non adjacent interior angles.

→ 123° = 90° + m<4

→ m<4 = 123°-90°

→ 33°