tolong jawab ya 1. d = 35 r = ? π = 22/7 l = ? 2. d =28 r = ? π 22/7 l = ?
Matematika
salma624
Pertanyaan
tolong jawab ya
1. d = 35
r = ?
π = 22/7
l = ?
2. d =28
r = ?
π 22/7
l = ?
1. d = 35
r = ?
π = 22/7
l = ?
2. d =28
r = ?
π 22/7
l = ?
1 Jawaban
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1. Jawaban rizkyalfianto
1. r= 1/2 d= 35× 1/2= 17,5 cm .
luas = πr²= 22/7 ×35/2×35/2=962,5 cm².
2. r= 1/2×d=1/2×28=14 cm
l= πr²=22/7× 14×14=616 cm²