1) The document discusses the intersection of a plane α with a cube ABCD.EFGH and a pyramid Z.ABCD. 2) It provides details on the construction of plane α which passes through points P, Q, and is parallel to face CH of the cube. 3) The task is to illustrate the intersection of plane α with the cube and pyramid, and draw the projections of plane α onto the cube and pyramid.

1. GAMBAR STEREOMETRIS
Kelompok 2
Ifadatul Ummah 4111412039
Retno Ayu Wardani 4111414003
Tiffani Dita P P 4111414009
Fitra Sukma Amorizki 4111414017
Yuninda Diah P 4111414014

2. SS = 45° AB = 5 cm Perbandingan Ortogonal
P  garis EF, EP:EF = 1:4 Q  garis BC, BC:QC = 8:3
Z perpotongan garis yang memuat diagonal. Bidang  melalui P, Q
dan // CH
K U B U S ABCD.EFGH
BIDANG ACH FRONTAL, GARIS AC HORISONTAL
LUKISLAH
Irisan  dengan kubus ABCD.EFGH
Irisan  dengan Limas Z.ABCD
Rebahan bidang  pada kubus ABCD.EFGH
Rebahan bidang  pada Z.ABCD

3. 5
5
A
B
C
D
E
H
G
F
O
5 √2
S
P
QR
T
W
X
U
V

4. A
B
C
D
E
H
G
F
Z
O
P
V W
X
S
Q
R
T
U
K
Y
L
M
N

5. AB
DC
E
H
G H
EF
F
GH
E
P
Q
R
S
V
T
U
V
X
W
P
W
R
X
W
P
W’
F
W
R
R
B
E
W
Q
Q
T’
T’
W
T

6. S
R
W
P
X
E
V
B A
DC H
G H
EF
F
GH
E
P
Q
R
V
T
U
X
W
W
P
W’
F
W
R
R
B
E
W
Q
Q
T’
T’
W
T
X

7. L
H
H
R
C
EB A
D
G
EF
F
G
P
Q
R
V
T
X
W
H
O
Z
Z
Z
Z
F
H
E
X
Z
Y
L
Z
E
G
V
K
Y
N
M
L
M
M
K
K
K
M
L
Z
D
Q
L
Q
T