jari2 lingkaran 7cm luas=

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Bangun Datar
Pembahasan :

Diketahui :
- r = 7 cm

Ditanya :
- L

L= πr²
L= 22/7 x 7 x 7
L= 22 x 7
L= 154 cm²

Luasnya adalah 154 cm²

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Heil Manstein!

luas lingkaran = π.r^2
= 22/7 × 7^2
= 22/7 × 49
= 22 × (49/7)
= 22 × 7
= 154cm^2