alishagurung344
alishagurung344 alishagurung344
  • 03-10-2020
  • Mathematics
contestada

find the unknown angle
how to solve this problem??
​

find the unknown anglehow to solve this problem class=

Respuesta :

duongpichpisey
duongpichpisey duongpichpisey
  • 03-10-2020

a)Find x and y

BCD=ACB+ACD

180°=ACB+150°

ACB=180°-150°

ACB=30°

since triangle ABC is an isosceles triangle

therefore, AB=BC

BAC=ACB

y=ACB=30°

ACB+ABC+BAC=180°

ABC+2BAC=180°

ABC+2*30°=180°

ABC=180°-60°

ABC=120°

X=120°

Answer Link

Otras preguntas

mathematical modeling results in formulas that give exact values of real world phenomena over time
what is the reason for cleaning step in the 5 step diswashing processing?
The most accurate current temperature of an animal is its _______ temperature.
Why do you believe there is so much government regulation involving social responsibility issues?
What was the result of collisions between the early Earth and other, smaller protoplanets? A. Matter within the protoplanets was absorbed and became the Ear
Which sign of pregnancy may manifest as an increase of urinary frequency in the client?
list 10 processes that occur while an organism is alive, but cease when it is dead.
"what shape are the pebble-sized particles that make up the rock?"
what rout did de alvis take
Thylakoids are membrane sacs that contain what?