matematika
TRANSCRIPT
![Page 1: Matematika](https://reader036.vdocuments.pub/reader036/viewer/2022082606/55880799d8b42a70068b4689/html5/thumbnails/1.jpg)
MATEMATIKA
LINGKARAN
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BAGIAN-BAGIAN LINGKARAN
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Bagian-bagian lingkaran
1. Titik pusat2. Jari-jari3. Diameter4. Busur5. Tali busur6. Tembereng7. Juring8. Apotema
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KELILING DAN LUAS LINGKARAN
LINGKARAN
KELILING
K=.D
K=2R
LUAS
L=R.R
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RUMUS LINGKARAN DAN CONTOHNYA
▫Luas lingkaran L = .r.rContoh: jika sebuah lingkaran berjari-jari 10 ,
berapakah luas lingkaran tersebut?Jawab : L = .r.r
3,14.10.10 314 cm
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• KELILING LINGKARANK = .DK = 2.rContoh :Jika sebuah lingkaran berdiameter 10, berapakah keliling lingkaran tersebut?
Jawab : K = .D = 3,14.10 = 31,4