Berapa Luasnya – VII

Hendra Gunawan28/04/202026/04/2020Problem

Perhatikan persegi panjang dengan panjang 15 dm dan lebar 10 dm dalam gambar di bawah ini.

Bila lebar strip berwarna putih sama dengan 1 dm, berapa luas total daerah berwarna biru?

Bandung, 28-04-2020

Published by Hendra Gunawan

I'm a professor of mathematics at the Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Bandung, Indonesia. View all posts by Hendra Gunawan

6 Comments

Sahat Parulian Hutajulu says:

07/06/2020 at 15:35

Menurut saya , L=117,33333…. dm persegi.

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1. Taufiqur says:
  
  29/07/2020 at 10:05
  
  Mohon koreksinya prof, menurut saya luas total daerah biru =8355/72 dm²=116,04 dm².
  
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2. Sahat Hutajulu says:
  
  22/10/2021 at 21:30
  
  Ralat. L= 2825/24 dm^2 = 117,708333…dm^2
  
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Sahat Hutajulu says:

24/10/2021 at 22:40

Luas yang ditanya =2825/24 = 117,7083333…dm persegi.

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sahathutajulu says:

24/10/2021 at 22:45

Luas yang ditanya =2825/24 = 117,7083333…dm persegi.

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sahathutajulu says:

07/11/2021 at 14:22

Please correct Prof

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