Question

Tolong nomor 12 sama 13 ya

Answer 1

Luas juring AOB/ luas juring BOC=<AOB/<boc
x/304,44=60/120
120x=18266,4
x=152,22

13.LJ DOE/luas lingkaran =<DOE/<lingkaran
211,95/3,14 x r²=108/360
339,12 x r²=76302
r²=225
r=15