
KELILING DAN LUAS BANGUN DATAR
Presentation
•
Mathematics
•
4th Grade
•
Hard
Miftachul Harnita
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4 Slides • 0 Questions
1
KELILING DAN LUAS BANGUN DATAR (kelas 4)
By Miftachul Harnita
2
Keliling Bangun Datar
Jumlah panjang seluruh sisi yang mengelilingi bangun datar tersebut.
Persegi
Persegi merupakan bangun datar yang
memiliki empat sisi dengan panjang yang
seluruhnya sama dan keempat sudutnya
sama besar yaitu 90 derajat.
Rumus Keliling Persegi = s + s + s + s = 4 x s
Rumus Luas Persegi = s x s = s2
By Miftachul Harnita
3
By Miftachul Harnita
Persegi Panjang
Persegi panjang memiliki dua sisi
panjang dan dua sisi lebar keempat
sudutnya siku-siku dan sisi berhadapan
sama panjang dan sejajar.
Rumus Keliling Persegi Panjang = p + l
p + l = 2p + 2l = 2 x (p + l)
Rumus Luas Persegi Panjang =
Panjang x lebar = p x l
4
By Miftachul Harnita
Segitiga
Segitiga dalah salah satu bangun
datar yang dibatasi oleh 3 buah sisi.
Setiap titik hubung antar sisi
membentuk sudut. SEhingga pada
segitiga terdapat 3 sudut. Adapun
untuk jumlah sudut segitiga adalah
180 derajat
Rumus Keliling Segitiga = a + b + c
Rumus Luas Segitiga =
½ x alas x tinggi
KELILING DAN LUAS BANGUN DATAR (kelas 4)
By Miftachul Harnita
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