d= 6 cm
r= d:2
= 6:2
= 3 cm
k= π×d
= 3,14×6
= 18,84
r=3 cm
L= π×r×r
= 3,14×3×3
= 28,26×3
= 84,78 cm
Bnr ndk y?
maacwhh
Tlg telitiin yee
Diketahui :
→ Diameter (d) = 6 cm
Ditanya :
→ Jari-jari (r)?
→ Keliling?
→ Luas?
Penyelesaian :
Jari-jari (r)
= ½ × d
= ½ × 6 cm
= 3 cm
Keliling
= 2 × π × r
= 2 × 3,14 × 3
= 18,84 cm
Luas
= π × r²
= 3,14 × 3²
= 3,14 × 9
= 28,26 cm²
Semoga Membantu :)