Question

#21pointtttttttttt #matematika
Balok
1.D=12 cm
L=8 cm
R=4 cm
Tentukan:
Luas alas=.......cm²
Volume balok=..........cm³

2.P= 15 m
L= .....m
T= 5 m
Luas alas=......cm2
Volume=.......cm3

3.P=......m
L= 8 m
T= 10 m
Luas alas=
Volume=

4.P=....m
L= 6 m
T= 8 m
luas alas:
volume:

note:
lanjutannya ada di foto nanti aku folllow yang jawab semuanya please yaaaaaa...
siang ini harus jawab pleaseee ....
yg baik baik
semuanya yaaaa

Answer 1

Jawab

5)

Lp = 2 [(p × l) + (p × t) + (l × t)]

Lp = 2 [(18 × 15) + (18 × 12) + (15 × 12)]

Lp = 2 (270 + 216 + 180)

Lp = 2 (666)

Lp = 1.332 cm²

V = p × l × t

V = 18 cm × 15 cm × 12 cm

V = 3.240 cm³

6)

Lp = 2 [(p × l) + (p × t) + (l × t)]

Lp = 2 [(22 × 14) + (22 × 18) + (14 × 18)]

Lp = 2 (308 + 396 + 252)

Lp = 2 (956)

Lp = 1.912 cm²

V = p × l × t

V = 22 cm × 14 cm × 18 cm

V = 5.544 cm³

7)

Lp = 2 [(p × l) + (p × t) + (l × t)]

Lp = 2 [(22 × 13) + (22 × 16) + (13 × 16)]

Lp = 2 (286 + 352 + 208)

Lp = 2 (846)

Lp = 1.692 cm²

V = p × l × t

V = 22 cm × 13 cm × 16 cm

V = 4.576 cm³

8)

Lp = 2 [(p × l) + (p × t) + (l × t)]

Lp = 2 [(29 × 10) + (29 × 14) + (10 × 14)]

Lp = 2 (290 + 406 + 140)

Lp = 2 (836)

Lp = 1.672 cm²

V = p × l × t

V = 29 cm × 10 cm × 14 cm

V = 4.060 cm³

semoga membantu