Jawaban:
[tex] \sf Luas = \pi \times {r}^{2} [/tex]
[tex] \sf Luas = 3,14 \times {20}^{2} [/tex]
[tex] \sf Luas = 3 ,14 \times 400[/tex]
[tex] \sf Luas = 1.256 \: {cm}^{2} [/tex]
Sebuah lingkaran dngn diameternya 40 cm.
jadi jari² atau r = 40/2 = 20 cm
Luas = ... ?
L = π × r²
L = 3,14 × 20²
L = 3,14 × (20 × 20)
L = 3,14 × 400
L = 1.256 cm²
[tex] \bf{ \blue{➵ \: Harumin}}[/tex]
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Jawaban:
Luas lingkaran
[tex] \sf Luas = \pi \times {r}^{2} [/tex]
[tex] \sf Luas = 3,14 \times {20}^{2} [/tex]
[tex] \sf Luas = 3 ,14 \times 400[/tex]
[tex] \sf Luas = 1.256 \: {cm}^{2} [/tex]
Penyelesaian:
Sebuah lingkaran dngn diameternya 40 cm.
jadi jari² atau r = 40/2 = 20 cm
Luas = ... ?
L = π × r²
L = 3,14 × 20²
L = 3,14 × (20 × 20)
L = 3,14 × 400
L = 1.256 cm²
[tex] \bf{ \blue{➵ \: Harumin}}[/tex]