Rumus keliling dan luas bangun datar

Di posting oleh blogphoniexwap pada 07:59 AM, 09-Nov-11 • Di: pendidikan
Rumus keliling dan Luas Bangun Datar Rumus Persegi
Keliling : 4 x Sisi
contoh : Sisi = 5 cm
Keliling = 4 x 5
= 20 cm

Luas : Sisi x Sisi
contoh : Sisi = 5 cm
Luas = 5 x 5
= 25 cm2

----------
Rumus persegi panjang
Keliling : 2 x (Panjang + Lebar)
contoh : Panjang = 6 cm
Lebar = 4 cm
Keliling = 2 x (6 + 4)
= 20 cm

Luas : Panjang x Lebar
contoh : Panjang = 8 cm
lebar = 5 cm
Luas = 8 x 5
= 40 cm2

------------------
Rumus Segitiga
Keliling : AB + AC + BC
Contoh : AB = 8 cm
AC = 10 cm
BC = 6 cm
Kelililng : 8 + 10 + 6
= 24 cm

Luas Segitiga : 1/2 x alas (BC) x tinggi AB
1/2 x 6 x 8
= 24 cm2
-------------

Rumus Lingkaran
Keliling lingkaran :22/7 x diameter atau 2 x 22/7 x jari jari

contoh : diameter =28 cm
jari jari = 2 x diameter = 28 : 2 = 14 cm
Keliling : 22/7 x 28
= 88 cm

Luas lingkaran : (22/7 atau 3,14) x jari jari
= 22/7 x 14 x 14
= 44 x14
= 616 cm2

mudah mudahan bisa membantu adik2 yg lagi scul,,dan trimakasih telah mengunjungi blogku

Bagikan ke Facebook Bagikan ke Twitter

Komentar

2 tanggapan untuk "Rumus keliling dan luas bangun datar"

Dicky | More Than Just A Blog pada 10:27 AM, 09-Nov-11

wah, mantaff ni rumusnya.. lanjutkan sob.. smile

mampir + tolong klik iklan dblog ane ya sob.. thax bantuannya.. smile

Earn up to $265 within next 12H Answering Simple Surveys pada 04:23 AM, 13-Aug-12

Earn up to $265 within next 12H Answering Simple Surveys
Hi zaky.heck.in admin just wanted to let you know

There's an incredible new opportunity
that just grabbed my attention!

It's almost too good to be true. Big
companies are paying people just like you, for giving
their opinions! I can't believe this guy and others are cashing out lot of money just for filling out simple surveys read here how they are doing this:

http://get-money-for-surveys.net

That's right! I'm not kidding, all you've got
to do is answer simple surveys and these
companies will pay you fat cash for it and it does not mater form which country you are, they need people from all over world!

You've got to see this.

http://get-money-for-surveys.net

But the truth is... they're not letting
lot of people access the program so
you've got to hurry!

See you there!
Brian

Langgani komentar: [RSS] [Atom]

Komentar Baru

[Masuk]
Nama:

Email:

Komentar:
(Beberapa Tag BBCode diperbolehkan)

Kode Keamanan:
Aktifkan Gambar