Jawaban:
luas lingkaran = 154 cm
luas lingkaran = πr²
154= πr²
r² =154×7/22
r²=49
r= ✓ 49
r=7
keliling persegi=2πr
=2× 22/7×7
=2×22
=44 cm
Penjelasan:
maaf kalau salah
semoga membantu
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Jawaban:
luas lingkaran = 154 cm
luas lingkaran = πr²
154= πr²
r² =154×7/22
r²=49
r= ✓ 49
r=7
keliling persegi=2πr
=2× 22/7×7
=2×22
=44 cm
Penjelasan:
maaf kalau salah
semoga membantu