

Hasil tambah sudut pedalaman dan sudut peluaran poligon
Presentation
•
Mathematics
•
7th - 8th Grade
•
Hard
ROKHIYAH Moe
Used 4+ times
FREE Resource
3 Slides • 2 Questions
1
Hasil tambah sudut pedalaman
a) Rumus hasil tambah sudut pedalaman bagi setiap poligon adalah (n−2) × 180° .
"n" itu mewakili bilangan sisi bagi poligon yang diberi.
b) contoh soalan:
Cari hasil tambah sudut pedalaman bagi heptagon.
jalan penyelesaiannya:
(n-2) x 180 = (7-2) x 180 = 900
kenapa "n" itu diganti dengan "7"?
kerana heptagon mempunyai 7 sisi.

2
Multiple Choice
Pilih jalan penyelesaian yang betul untuk mencari hasil tambah sudut pedalaman bagi heksagon.
(2-6) x 180
(8-2) x 180
(6-2) x180
(2-8) x 180
3
Hasil tambah sudut peluaran poligon
Hasil tambah bagi sudut peluaran bagi SEMUA jenis poligon adalah SAMA iaitu 360°
Contoh 1:
Apakah hasil tambah sudut peluaran bagi pentagon?
Jawapan: 360°
Contoh 2:
Apakah hasil tambah sudut peluaran bagi nonagon?
Jawapan: 360°
4
Mencari nilai x dalam setiap poligon
STEP 1: Kenal pasti dahulu adakah x itu berada di dalam poligon atau di luar poligon.
STEP 2: Sekiranya x itu berada di dalam poligon, maka gunakan rumus (n-2) x 180. Dan sekiranya x itu berada di luar poligon, gunakan nilai 360.
5
Fill in the Blanks
Type answer...
Hasil tambah sudut pedalaman
a) Rumus hasil tambah sudut pedalaman bagi setiap poligon adalah (n−2) × 180° .
"n" itu mewakili bilangan sisi bagi poligon yang diberi.
b) contoh soalan:
Cari hasil tambah sudut pedalaman bagi heptagon.
jalan penyelesaiannya:
(n-2) x 180 = (7-2) x 180 = 900
kenapa "n" itu diganti dengan "7"?
kerana heptagon mempunyai 7 sisi.

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