
Lingkaran
Presentation
•
Mathematics
•
KG
•
Practice Problem
•
Easy
Rokhayati Lestari
Used 9+ times
FREE Resource
8 Slides • 4 Questions
1
Lingkaran
Menghitung Panjang Busur, Luas Juring, dan Luas Tembereng Lingkaran
By Rokhayati Lestari, S.Pd
2
Panjang Busur
Rumus Panjang Busur
= α × keliling lingkaran
360°
Keterangan :
α = sudut pusat
3
Luas dan Keliling Juring Lingkaran
Rumus :
Luas Juring = α × luas lingkaran
360°
Keliling Juring = 2r + panjang busur
Keterangan :
α = sudut pusat
r = jari-jari
4
Contoh:
5
Luas dan Keliling Tembereng Lingkaran
Rumus :
Luas Tembereng
= luas juring − luas segitiga
Keliling Tembereng
= panjang tali busur − panjang busur
6
Contoh:
7
Poll
apakah kalian paham dengan materi yang telah dijelaskan?
sudah paham semua
ada beberapa yang belum paham
belum paham
8
Silahkan kalian pelajari lagi materi yang ada di LKS halaman 16-17
Apabila ada yang masih bingung atau belum bisa memahami materi dapat ditanyakan saat ada jadwal tatap muka pertemuan selanjutnya
9
Draw
Tulislah jawaban kalian untuk soal nomor 3 (LKS halaman 19)
10
Draw
Tulislah jawaban kalian untuk soal nomor 4 (LKS halaman 19)
11
Draw
Tulislah jawaban kalian untuk soal nomor 5 (LKS halaman 19)
12
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Lingkaran
Menghitung Panjang Busur, Luas Juring, dan Luas Tembereng Lingkaran
By Rokhayati Lestari, S.Pd
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