nataliet31 nataliet31
  • 24-01-2021
  • Mathematics
contestada

Can someone please help me with number 16?

Can someone please help me with number 16 class=

Respuesta :

bexwhite2610
bexwhite2610 bexwhite2610
  • 25-01-2021

Answer:

I got 105°

Step-by-step explanation:

Triangle ABC is an isosceles triangle so base angles are equal. <A = 30° (given)

180 - 30 = 150°

150/2 = 75°

the little triangle is also isosceles. the original base angles have been bisected so the base angles are 37.5.

37.5 X 2 = 75°

180-75 = 105°

D = 105°

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