SKB PGSD Matematika sesuai FR

SKB PGSD Matematika sesuai FR

Professional Development

30 Qs

quiz-placeholder

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SKB PGSD Matematika sesuai FR

SKB PGSD Matematika sesuai FR

Assessment

Quiz

Mathematics

Professional Development

Hard

Created by

Jezzy Oktavia

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

12111103 basis 3 = ... basis 5.

112013

112103

110213

121013

Answer explanation

Media Image

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jila luas lingkaran 16π, berapa keliling lingkaran?

4√2π

Answer explanation

Luas lingkaran = πr²

16π = πr²

16 = r²

r = 4


Keliling lingkaran = 2πr

= 2π x 4

= 8π

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

FPB dari 54, 72, dan 90 adalah... .

9

18

27

54

Answer explanation

Trik 3 angka FPB :

Lihat selisihnya saja. 😅


54, 72, 90

72 - 54 = 18

90 - 72 = 18


FPB 18 dan 18 adalah 18

Berarti hasilnya 18. 😎

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Rata² kelas = 13

A = 15

B= 12

C = 11

D = 15

E = ...

Nilai E adalah... .

10

11

12

13

Answer explanation

Rata-rata nilai kelas = 13

Sebanyak 5 orang

Jumlah nilai = Rerata x n = 13 x 5 = 65


Jumlah nilai 4 orang = 53


Nilai E = 65-53 = 12


√ Trik

Rata² kan 13.. jadi patokan 13...

15 = +2

12 = -1

11 = -2

15 = +2

... =(Sini harus ngimbangin kelebihan di atas)

2-1-2+2=1

Karena hasilnya + maka kelebihan 1, supaya nol maka harus -1

Jadi, 13-1 = 12. 😅

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Hari Senin sangat dingin, hari Selasa semakin dingin 2°C, hari Rabu menghangat 4°, sampai hari Jum'at suhunya -14°. Berapakah suhu hari Senin?

16°

-16°

12

-12°

Answer explanation

x-2°+4°= -14°

x+2°=-14°

x=-14°-2°= -16°

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jumlah diagonal bangun datar segi dua belas beraturan adalah... buah.

27

35

44

54

Answer explanation

1/2 x n x (n - 3)

1/2 x 12 x (12 - 3) = 54


atau

n (n - 3)/2 = 12 (12 - 3)/2 = 12 x 9/2 = 108/2 = 54

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Perhatikan gambar di atas! Luas daerah yang diarsir adalah... .

42 cm²

54 cm²

154 cm²

196 cm²

Answer explanation

Luas daerah yang diarsir =

L persegi - L lingkaran

(s x s) - (πr²)

(14 x 14) - (22/7 x 7 x 7)

= 196 - 154

= 42 cm²

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