Kubus ABCD.EFGH dengan panjang rusuk 20 cm. Titik ...

Kubus ABCD.EFGH dengan panjang rusuk 20 cm. Titik P dan Q berturut-turut terletak pada pertengahan FG dan HG. Perpanjangan garis BP, DQ dan CG berpotongan di titik T. Tentukan volume limas T.BCD.

$...$
$undefined$

Jawaban:

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell angle C D T end cell equals cell angle G Q T end cell row cell tan space C D T end cell equals cell tan space G Q T end cell row cell fraction numerator C T over denominator C D end fraction end cell equals cell fraction numerator G T over denominator G Q end fraction end cell row cell fraction numerator C G plus G T over denominator C D end fraction end cell equals cell fraction numerator G T over denominator begin display style bevelled 1 half end style C D end fraction end cell row cell C G plus G T end cell equals cell 2 cross times G T end cell row cell 20 plus G T end cell equals cell 2 G T end cell row cell G T end cell equals cell 20 space c m end cell row V equals cell 1 third cross times L subscript a l a s end subscript cross times t end cell row blank equals cell 1 third cross times 1 half cross times B C cross times C D cross times C T end cell row blank equals cell 1 over 6 cross times 20 cross times 20 cross times open parentheses 20 plus 20 close parentheses end cell row blank equals cell 2666 2 over 3 c m cubed end cell row blank blank blank end table end style$

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

Bantuan & Panduan

Hubungi Kami

Ruangguru WhatsApp

081578200000

[email protected]

02140008000

Ikuti Kami

Instagram

Facebook

Twitter

Youtube

LinkedIn

©2021 Ruangguru. All Rights Reserved