Răspuns:
Explicație pas cu pas:
a)x+95+83+73=360 x=360-(95+83+73)=360-251=109°
b)3x+2+4x+3+x+4+2x+1=360
10x+10=360 ⇒ x+1=36 x=35°
c)x=60°
y=60°/2=30°
d)x=2·30°=60°
e)4x+2=90 4x=88 x=22°
f)3x-8=x 2x=8 x=4°
g)2x+3=x+11 x=8°
h)x=(49+73)/2=122/2=61°
t=(100+73)/2=173/2=86°30'
360-(100+73+49)=138° al patrulea arc de cerc
y=(138+49)/2=187/2=93°30'
z=(100+138)/2=238/2=119°
