1-2-3 Magic in the Classroom: Effective Discipline for Pre-K Through Grade 8, 2nd Edition

1-2-3 Magic in the Classroom: Effective Discipline for Pre-K Through Grade 8, 2nd Edition

Matematika Luas Jaring Jaring tabung diatas adalah...
(a) 352 Cm²
(b) 506 Cm²
(c) 650 Cm²
(d) 660 Cm²

Nt : Selamat Pagi User Brainly :)​

Luas Jaring Jaring tabung diatas adalah...
(a) 352 Cm²
(b) 506 Cm²
(c) 650 Cm²
(d) 660 Cm²

Nt : Selamat Pagi User Brainly :)​

Jawaban:

Luas Jaring Jaring Tabung

= Luas persegi panjang + 2 luas lingkaran

= pxl + 2 phi r^2

= ( 44 x 8) + 2(22/7 x 7^2)

= 352 + 2(154)

= 352 + 308

= 660 cm2

maaf kalau salah

semoga bermanfaat

》Bangun Datar

Panjang Jari Jari Lingkaran =

44 = 2πr

44 = 2 × 22/7 × r

44 = 44/7 × r

  • r = 44 ÷ 44/7
  • r = 44 × 7/44
  • r = 7 cm

Luas Jaring Jaring =

= Luas 2 Lingkaran + Luas Persegi Panjang

= 2πr² + p × l

= 2 × 22/7 × 7 × 7 + 44 × 8

= 2 × 22 × 7 + 44 × 8

  • = 308 + 352
  • = 660 cm²
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