Iklan

Pertanyaan

The length of a rectangle exceeds its widthby 2 cm . If each dimension were increased by 3 cm , the area would be increased by 51 cm 2 . The width of original rectangleis equal to . ...

The length of a rectangle exceeds its width by . If each dimension were increased by , the area would be increased by . The width of original rectangle is equal to . ...

8 dari 10 siswa nilainya naik

dengan paket belajar pilihan

Habis dalam

01

:

20

:

26

:

40

Klaim

Iklan

N. Puspita

Master Teacher

Jawaban terverifikasi

Pembahasan

Pembahasan
lock

Asumsikan : Panjang = Lebar = Maka lebarnya : Maka, lebarawal persegi panjang tersebut adalah

Asumsikan :

Panjang = italic p equals italic l plus 2
Lebar = italic l

Maka lebarnya :

table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses italic p plus 3 close parentheses cross times open parentheses italic l plus 3 close parentheses end cell equals cell open parentheses italic p cross times italic l close parentheses plus 51 end cell row cell open parentheses italic l plus 2 plus 3 close parentheses cross times open parentheses italic l plus 3 close parentheses end cell equals cell open parentheses open parentheses italic l plus 2 close parentheses cross times italic l close parentheses plus 51 end cell row cell open parentheses italic l plus 5 close parentheses cross times open parentheses italic l plus 3 close parentheses end cell equals cell italic l squared plus 2 italic l plus 51 end cell row cell italic l squared plus 8 italic l plus 15 end cell equals cell italic l squared plus 2 italic l plus 51 end cell row cell italic l squared minus sign italic l squared plus 8 italic l minus sign 2 italic l end cell equals cell 51 minus sign 15 end cell row cell 6 italic l end cell equals 36 row italic l equals 6 end table

Maka, lebar awal persegi panjang tersebut adalah 6 space cm

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

2

Iklan

Pertanyaan serupa

Nilai x yang memenuhi 6 2 x + 8 ​ = 5 4 − x ​ adalah ....

2

5.0

Jawaban terverifikasi

RUANGGURU HQ

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

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

[email protected]

Contact 02140008000

02140008000

Ikuti Kami

©2024 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia