Jawaban:
luas lingkaran Jika jari²nya 21
luasnya = π × r² = 22/7 × 21² = 1386 cm²
luas lingkaran Jika diameternya 20 berarti jari²nya 10
maka π × r²= 3,14×10² = 314 cm²
semoga membantu
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Jawaban:
luas lingkaran Jika jari²nya 21
luasnya = π × r² = 22/7 × 21² = 1386 cm²
luas lingkaran Jika diameternya 20 berarti jari²nya 10
maka π × r²= 3,14×10² = 314 cm²
semoga membantu