Jawab:
No 20 gambar keterangan nya bisa lihat di soal
Jadikan jawaban terbaik ya ;)
BC = 22 cm
AF = 14 cm
maka FG = 22-14 = 8 cm
Krn FG = GD maka GD = 8 cm
GC² = DC² - DG²
GC² = 17² - 8²
GC² = 289 + 64
GC = √225
GC = 15 cm
AB = GC = 15 cm
CE = 21 cm
maka GE = CE - GC = 21-15 = 6 cm
maka DE² = DG² + GC²
DE² = 8² + 6²
DE² = 64 + 36
DE = √100
DE = 10
jadi, keliling bangun tsb adalah :
= CD+DE+EF+FA+AB+BC
= 17+10+10+14+15+22
= 88 cm
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Jawab:
No 20 gambar keterangan nya bisa lihat di soal
Jadikan jawaban terbaik ya ;)
BC = 22 cm
AF = 14 cm
maka FG = 22-14 = 8 cm
Krn FG = GD maka GD = 8 cm
GC² = DC² - DG²
GC² = 17² - 8²
GC² = 289 + 64
GC = √225
GC = 15 cm
AB = GC = 15 cm
CE = 21 cm
maka GE = CE - GC = 21-15 = 6 cm
maka DE² = DG² + GC²
DE² = 8² + 6²
DE² = 64 + 36
DE = √100
DE = 10
jadi, keliling bangun tsb adalah :
= CD+DE+EF+FA+AB+BC
= 17+10+10+14+15+22
= 88 cm