Page 44 - Modul Bangun Datar Segi Empat_Neat

sisi miring = +
2

2
sisi miring = 16 + 6
2
sisi miring = 256 + 36

sisi miring = 292 = 4 73 = 2 73 = 8,5 m

Keliling = ∑

Keliling = a + a + sisi miring + sisi miring
2
1
Keliling = 14 m + 26 m + 8,5 m + 8,5 m

Keliling = 57 m

9. Diketahui : Keliling = 52 cm

d = Panjang AC = 10 cm
1

Ditanya : luas ?

Jawab :

AO = OC = = 10 = 5
2 2

s = AB = BC = CD = DA = = 2 = 13

BO = OD = −
2

= √13 − 5 = 169 − 25 = 144 = 12
2
2
d = panjang BD = 2 x BO = 2 x 12 cm = 24 cm
2
42

Bangun Datar Segi Empat - VII