Page 26 - DIMENSI TIGA 4
P. 26
CONTOH
CONTOH
PERMASALAHAN 2
PERMASALAHAN 2
Penyelesaian
Mencari panjang AC
C
2
AC = AB + BC 2
2
AC = 8 + 8 2
A B AC = 64 + 64
AC = 128 = 64 2
×
Mencari tinggi TO AC = 8 2 cm
T
2
OC = 1/2 AC TO = TC - TO 2
OC = 1/2 (8 2 ) TO = 9 - (4 2 )
2
2
OC = 4 2 TO = 81 - 32
TO = 49 = 7 cm
O C
Jadi, tinggi piramida Andi adalah 7 cm.
