

Ruang Tahun 4
Presentation
•
Mathematics
•
4th Grade
•
Practice Problem
•
Hard
NORHAYATI MAT KAMIL
FREE Resource
10 Slides • 0 Questions
1
RUANG
Cikgu Norhayati
2
SUB TOPIK
*Sudut tegak
*Garis selari
*Sudut tirus
*Garis serenjang
* Sudut cakah
*2 Dimensi
*3 Dimensi
Bentuk
Sudut
Perimeter
Luas
Isipadu
Garis
3
MAKSUD SUDUT
Ruang antara dua garisan yang bertemu
Presentation title
3
Sudut tegak
Sudut tirus
Sudut cakah
4
MAKSUD GARIS
SELARI
Dua garis lurus yang bertentangan dengan jarak
tegak antara kedua-duanya sentiasa sama.
Presentation title
4
X
Y
1 cm
1 cm
Garis X dan Garis Y adalah selari
5
MAKSUD GARIS
SERENJANG
Dua garis lurus yang bertemu atau bersilang pada
sudut tegak
Presentation title
5
Garis K dan Garis L adalah berserenjang.
K
L
6
BENTUK
6
7
2 DIMENSI
7
1. PERIMETER
•Hasil tambah semua ukuran sisi luar
bentuk dua dimensi.
•Contoh 1: Perimeter bagi segi empat
sama atau segiempat tepat.
• Perimeter= a + b + c + d
a
b
c
d
•Contoh 2: Perimeter bagi segi tiga
• Perimeter= a + b + c
•Contoh 3: Perimeter bagi poligon sekata.
• Perimeter= 5 x a
a
b
c
a
8
2 DIMENSI
8
2. LUAS
•Jumlah permukaan yang dilitupi oleh
bentuk dua dimensi.
Formula = Panjang x Lebar
•Dinyatakan dalam unit persegi.
•Contoh:25 cm
•Contoh 1: Luas bagi segi empat sama
atau segiempat tepat.
• Luas = a x b
a
b
•Contoh 2: Luas bagi segi tiga
• Luas =
1
2x tapak x tinggi
•
=
1
2x a x b
•.
a
b
9
3 DIMENSI
9
ISI PADU
•Ruang yang dipenuhi oleh sebuah
bentuk tiga dimensi
Formula = Panjang x Lebar x Tinggi
• Isipadu = a x b x c
• Dinyatakan dalam unit
padu. Contoh: 30m
a
b
c
10
TERIMA KASIH
Norhayati binti Mat Kamil
norhayatimatkamil@gmail.com
RUANG
Cikgu Norhayati
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