taskmasters
taskmasters taskmasters
  • 11-09-2016
  • Mathematics
contestada

If m∠ABC = 72°, what is m∠DAB?

A) 72°
B) 108°
C) 144°
D) 216°

If mABC 72 what is mDAB A 72 B 108 C 144 D 216 class=

Respuesta :

Аноним Аноним
  • 11-09-2016
∠ABC=∠CDA=72º
∠DAB=∠BCD=x

∠ABC+∠CDA+∠DAB+∠BCD=360º

Therefore:
72º+72º+x+x=360º
144º+2x=360º
2x=360º-144º
2x=216º
x=216º/2
x=108º

So, ∠DAB=∠BCD=x=108º

Answer: 
∠DAB=108º  (B)
Answer Link
9cakaolisa 9cakaolisa
  • 21-04-2020

B) 108°

Answer:

B) 108°

Step-by-step explanation:

Answer Link

Otras preguntas

Match each of these works with its artist.Pieter Bruegelthe ElderIsenheim AltarpieceAlbrecht DürerBattle Between Carnivaland LentMatthiasGrünewaldThe Apocalypse
sksksksksk... Best answer gets brainiest
Someone answer please
Read the sentence. Albert hopes they decide to reschedule the lecture for a different day. Which sentence corrects the vague pronoun problem in this sentence? H
Write a program to simulate a payroll application. To that affect you will also create an Employee class, according to the specifications below. Since an Employ
Umatilla Bank and Trust is considering giving Pronghorn Corp a loan. Before doing so, it decides that further discussions with Pronghorn Corp’s accountant may b
A cab driver heads south with a steady speed of V,22.0 m/s tor t 3.00 min, then makes a right turn and travels at v225.0 m/s for t2-2.40 min, and then drives no
why are dwarf stars not considered a good place to look for life?
which best describes napoleons empire 1812?
Can someone help me.???!