Jawab yg benar pliss nanti Ku Follow, jan ngasal, ​

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Jawab yg benar pliss nanti Ku Follow, jan ngasal, ​

Jawab yg benar pliss nanti Ku Follow, jan ngasal, ​

Jawaban:

1. 126 m

2. 3 km

3. 21 m

4. 100 km kain flanel

Penjelasan dengan langkah-langkah:

maaf kalo salah ya

Jawaban:

1. 196 meter

2. 9,42 km

3. : 693 {m}^{2}

4. : 1570 {cm}^{2}

Penjelasan dengan langkah-langkah:

1.

 = pi times dtimes 3

 = frac{22}{7} times 42 times 3

 = 22 times 6 times 3

 = 196 {cm}^{2}

2.

 = pi times d times 5000

 = 3.14 times (30 times 2) times 5000

 = 3.14 times 60 times 5000

 = 188.4 times 5000

 = 942000cm

 = 9.42km

3.

 = pi times r times r times frac{1}{2}

 = frac{22}{7} times 21 times 21 times frac{1}{2}

 = 11 times 3 times 21

693 {cm}^{2}

4.

 = pi times r times r times 5

 = 3.14 times 10 times 10 times 5

 = 314 times 5

 = 1570 {cm}^{2}

Maaf kalau salah