
Soal Deret Geometri

Quiz
•
Mathematics
•
10th Grade
•
Medium
FADIYAH ALFIYAHNI
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebuah pita dipotong menjadi 5 bagian sehingga ukurannya membentuk deret geometri. Jika panjang potongan pita terpendek 4 cm dan potongan tali terpanjang 324 cm, maka panjang pita semula adalah...
484 cm
820 cm
648 cm
328 cm
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui deret geometri dengan suku pertama = 3 dan suku ke 4 = 24. Jumlah 7 suku pertama deret tersebut adalah...
384
381
192
190
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam suatu susunan bilangan yang membentuk deret geometri, diketahui bahwa suku pertamanya 3 serta suku ke sembilan adalah 768. Jadi,berapa suku ke-7 dari deret bilangan tersebut?
294
194
190
290
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Suatu deret geometri diketahui suku ke-n dirumuskan dengan Un = 23-2n rasio deret tersebut adalah...
4
¼
-¼
0,25
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Deret geometri : 1,3,9,27,81.... Hitunglah berapa nilai Sn dalam deret tersebut (n=3)!
S3 = (1×26)∕2
26
12
13
6.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Jumlah suku pertama suatu deret geometri dirumuskan dengan Sn=23n-1. Rasio deret tersebut adalah...
8
18
56∕7
16
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Diketahui deret geometri 3, 6, 12, 24,... Tentukan U10
1.536
Un = a x rn
2.532
U10 = 3 × 210-1
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