Question

ajutor va rog !!!100 puncte!!!!!!

Answer 1

Răspuns:

Explicație pas cu pas:

∡D=1intreg si 1/4∡B= 5/4∡B=5/4 ori 2/3∡A= 10/12∡A care se simplifica cu 2=5/6∡A

∡A+∡B+∡C+∡D=360°

∡A+2/3∡A+1/6∡A+5/6∡A=360°

6/6∡A+4/6∡A+1/6∡A+5/6∡A=360°

15/6∡A=360°

∡A=360 X6/15=144°

∡B=2/3∡A=2/3X144=96°

∡C=1/6∡A=1/6X144=24°

∡D=5/6∡A=5/6X144=120°

Answer 2

Răspuns:

Explicație pas cu pas: