Question

Tolong jawab soal ini plissss
哈咯呐吗哭玩​

Answer 1

Jawaban:

1. C. 14cm

2. B. 62,8

Penjelasan dengan langkah-langkah:

1. L = 616

phi x r² = 616

22/7 x r² = 616

r² = 616 : 22/7

r² = 616 x 7/22

r² = 196

r = √196

jadi r = 14 cm

2. r² = 100

r = √100

r = 10cm

2 × π × r

= 2 × 3,14 × 10

= 62,8cm

jadi B.

Answer 2

34.

L = 616 cm²

616 cm² = πr²

616 cm² = 22/7 × r²

r² = 616 ÷ 22/7

r² = 616 × 7/22

r² = 196

r = √196

r = 14 cm (c)

35.

panjang r Lingkaran:

L = 314 cm²

314 cm² = πr²

314 cm² = 22/7 × r²

r² = 314 ÷ 22/7

r² = 314 × 7/22

r² = 99,90 → 100

r² = 100

r = √100

r = 10 cm

Keliling:

K = 2πr

K = 2 × 3,14 × 10

K = 6,28 × 10

K = 62,8 cm (b)

~VVM