<MNR=150
<NKL=60
Объяснение:
<MNK=60
so <MNR=60+90=150
How can find <NKL
draw MO
so MO=NO
then draw OL
so OK=OL
write <NMO=60
so <MON=60
MN=10=KL
MN arc 60 degree
and so KL arc 60 degree
so <KOL=60=<OKL=<OLK
you want <NKL=60degree
<MNR=150
<NKL=60
Объяснение:
<MNK=60
so <MNR=60+90=150
How can find <NKL
draw MO
so MO=NO
then draw OL
so OK=OL
write <NMO=60
so <MON=60
MN=10=KL
MN arc 60 degree
and so KL arc 60 degree
so <KOL=60=<OKL=<OLK
you want <NKL=60degree