Jawaban:
1. s² = 12² + 5²
s = √12²+5²
s = √144+25 = √169 = 13cm
2. Lp = πr(r+s)
Lp = 22 x 21 x (21+40)
7
Lp = 22 x 3 x 61
Lp = 4026cm²
3. Lp = 4xπr²
Lp = 4 x 22 x 14 x 14
Lp = 4 x 22 x 2 x 14
Lp = 2464cm²
semoga membantu
maaf kalo ada yang salah ya
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Jawaban:
1. s² = 12² + 5²
s = √12²+5²
s = √144+25 = √169 = 13cm
2. Lp = πr(r+s)
Lp = 22 x 21 x (21+40)
7
Lp = 22 x 3 x 61
Lp = 4026cm²
3. Lp = 4xπr²
Lp = 4 x 22 x 14 x 14
7
Lp = 4 x 22 x 2 x 14
Lp = 2464cm²
semoga membantu
maaf kalo ada yang salah ya