Jawapan

2016-01-21T19:11:49+08:00
Pentagon= 540°
heksagon=720°
heptagon=900°
oktagon=1080°
2016-01-21T19:37:34+08:00
Sudut pedalaman bagi;
1) heksagon
= (6 - 2) x 180
= 720

2) oktagon
= (8 - 2) x 180
= 1080

3) heptagon
= (7 - 2) x 180
= 900

4) pentagon
= (5 - 2) x 180
= 540
knape kene tolak 2 ye?
kerana formula nya, (n-2) x 180