Page 28 - TRIGONOMETRI

CONTOH SOAL 2

Jawaban:
FI

F 6 cm G sin 30° = EF
1 FI
=
2 15
15
FI =
2
FI = 7.5 cm
30° 1
E I 10 cm H luas trapesium = × (a + b) × tinggi
2
1
luas trapesium = × (6 + 10) × 7.5
2
2
luas trapesium = 60 cm