luas lingkaran yang kelilingnya 264 cm adalah...cm

K lingkaran = 2 × π ×r
264 = 2 × 22/7 × r
264 = 44/7 ×r
264×7/44 =r
1848/44 =r
42 =r

Luas lingkaran
= π × r²
=22/7 × 42 × 42
=22 × 6 ×42
=132 × 42
=5544cm²

Bismillahirohmanirohim

Jawabannya :

Mencari jari - jari (r) dulu :

keliling = 2 x π x r
264 = 2 x 22/7 x r
264 = 44/7 x r
r = 44/7 : 264
r = 7/44 x 264
r = 7 x 6
r = 42

Luas lingkaran :

= π x r²
= 22/7 x 42 x 42
= 22 x 6 x 42
= 132 x 42
= 5.544 cm²

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