
KERUCUT
Presentation
•
Mathematics
•
9th Grade
•
Hard
Agustinus Chrismiranto
FREE Resource
4 Slides • 0 Questions
1
By Agustinus Chrismiranto
2
Definisi Kerucut
adalah bangun ruang sisi lengkung dengan bidang alas berupa lingkaran dengan titik puncak yang dihubungkan dengan alas dan membentuk selimut
jika diilustrasikan menjadi seperti berikut
3
Definisi Kerucut
AD adalah diameter alas
AB = BD = Jari jari kerucut (r)
CD = CA = panjang garis pelukis (s)
BC adalah tinggi kerucut (t)
untuk menentukan panjang garis pelukis dapat digunakan prinsip pythagoras
4
jaring-jaring & Selimut Kerucut
jika kerucut dibuka maka akan membentuk seperti gambar disamping yaitu jaring-jaring kerucut.
jaring-jaring terdiri dari selimut dan alas
untuk ukuran jaring-jaring kerucut didapatkan seperti berikut
By Agustinus Chrismiranto
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