Roboguru

Andi akan membuat jaring-jaring tabung dengan diam...

Andi akan membuat jaring-jaring tabung dengan diameter 35 cm dan tinggi 20 cm. Tentukan luas kertas yang dibutuhkan Andi!

Jawaban:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell jari minus jari end cell equals cell 35 divided by 2 equals 17 comma 5 end cell row cell Luas space permukaan space tabung end cell equals cell luas space selimut plus 2 cross times luas space alas end cell row cell space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space end cell equals cell 2 cross times straight pi cross times straight r cross times straight t plus 2 cross times straight pi cross times straight r squared end cell row cell space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space end cell equals cell 2 cross times 22 over 7 cross times 17 comma 5 space cross times 20 plus 2 cross times 22 over 7 cross times 17 comma 5 cross times 17 comma 5 end cell row cell space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space end cell equals cell 2.200 plus 1925 end cell row cell space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space end cell equals cell 4.125 space cm squared end cell end table end style            

Jadi, luas kertas yang dibutuhkan Andi adalah 4.125 cm2

0

Ruangguru

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Download di Google Play

Download di Appstore

Produk Ruangguru

Produk Lainnya

  • Brain Academy Online
  • English AcademyBaru
  • Skill Academy
  • Ruangkerja

Bantuan & Panduan

Hubungi Kami

Ruangguru WhatsApp

081578200000

[email protected]

02140008000

Ikuti Kami

©2021 Ruangguru. All Rights Reserved