diketahui segitiga abc,panjang ab= 8cm,sudutc=30derajat,sudut a=60derajat, tentukan panjang bc

langsing aja ya

bc/sinA = ab/sinC
bc = ab/sinC × sinA
bc = 8/sin30 × sin60
bc = 8/(1/2) × 1/2 akar3
bc = 8 akar3 cm

ab / sin c = bc / sin a
8 / sin 30° = bc / sin 60
8 / (1/2) = bc / (1/2 akar 3)
8 × 2 = (bc x 2) / akar 3
16 = 2bc / akar 3
2bc = 16 × akar 3
2bc = 16 akar 3
bc = (16 akar 3) / 2
bc = 8 akar 3 cm