Jika sebuah lingkaran memiliki luas 200, 96 cm³ maka diameternya adalah..... Cm (π = 3, 14)

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Mapel : Matematika
Tentang : Bangun Datar
Pembahasan :

Diketahui :
- L = 200,96 cm²

Ditanya :
- d

L = πr²
200,96 = 3,14 x r²
r² = 200,96/3,14
r = √64
r = 8 cm

d = 2r
d = 16 cm

Jadi diameternya adalah 16 cm

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Heil Manstein!

L = phi r kuadrat
200,96 = 3,14 ×r kuadrat
r kuadrat = 200,96/3,14
r kuadrat = 64
r = akar kuadrat 64
r= 8 cm
diameter = 8cm x 2 = 16 cm