Cara mencari luas daerah yang diarsir pada persegi dan lingkaran
Asked by wiki @ in Matematika viewed by 452 People
Cara mencari luas daerah yang diarsir bagaimana?makasih
Asked by wiki @ in Matematika viewed by 452 People
Cara mencari luas daerah yang diarsir bagaimana?makasih
Answered by wiki @
Luas daerah yang diarsir adalah 42 cm² dan 84 cm².
Bangun datar adalah suatu bangun dua dimensi. Ada beberapa jenis bangun datar, yaitu:
Selain bangun-bangun tersebut, masih banyak jenis bangun datar baik yang beraturan maupun yang tak beraturan lainnya.
Diketahui:
r = 14 cm
s = 14 cm
Ditanyakan:
d. Luas Bangun 1
e. Luas Bangun 2
Jawab:
d. Luas Bangun 1.
Apabila kita amati gambar tersebut, kita dapat melihat bahwa bangun 1 ini membentuk 2 bangun yaitu persegi dan seperempat lingkaran. Maka, untuk menentukan luas bangun 1, kita dapat menentukan melalu bangun persegi dan seperempat lingkaran tersebut.
Jadi, luas bangun tersebut adalah 42 cm².
e. Luas Bangun 2.
Apabila kita amati gambar tersebut. Tidak jauh beda dengan gambar pada bangun 1. Kita dapat mengambil kesimpulan bahwa bangun 2 itu sama dengan dua kali dari bangun 1.
Jadi, luas bangun tersebut adalah 84 cm².
_______________________________________________
Kelas: 5
Mapel: Matematika
Bab: 3 - Luas Bangun Datar Sederhana
Kode: 5.2.3
Kata Kunci: Luas, Bangun Datar, Persegi, Lingkaran
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