6. The length of arc BC is
luas dan keliling ¼ lingkaran
rumus luas = ¼¼ x π x r x r
rumus keliling = ¼ x 2 x π x r + d
5. keliling ¼ lingkaran
= dik ¼ x 2 x π x r + d
= ¼ x 2 x 3,14 x 15 + 30
= ¼ x 6,28 x 15 + 30
= ¼ x 2826
= 706,5
6 luas ¼ lingkaran
= ¼ x π x r x r
= ¼ x 3,14 x 15 x 15
= ¼ x 706,5
= 176,625
maap kalo salah yaa
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