Pertanyaan

Pada gambar di bawah diketahui panjang OP = 28 cm dan busur PQ = 17,6 cm. Hitung luas juring POQ.

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Habis dalam

Klaim

P. Tessalonika

Master Teacher

Mahasiswa/Alumni Universitas Negeri Medan

Jawaban terverifikasi

Pembahasan

Maka, luas juring POQ adalah 246,4 cm 2

$table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator Panjang space busur space PQ over denominator Keliling space lingkaran end fraction end cell equals cell fraction numerator Luas space juring space POQ over denominator Luas space lingkaran end fraction end cell row cell fraction numerator 28 space cm over denominator 2 πr end fraction end cell equals cell fraction numerator Luas space juring space POQ over denominator πr squared end fraction end cell row cell Luas space juring space POQ end cell equals cell fraction numerator 28 space cm cross times πr squared over denominator 2 πr end fraction end cell row cell Luas space juring space POQ end cell equals cell fraction numerator 28 space cm cross times straight r over denominator 2 end fraction end cell row cell Luas space juring space POQ end cell equals cell fraction numerator 28 space cm cross times 17 comma 6 space cm over denominator 2 end fraction end cell row cell Luas space juring space POQ end cell equals cell 14 space cm cross times 17 comma 6 space cm end cell row cell Luas space juring space POQ end cell equals cell 246 comma 4 space cm squared end cell end table$

Maka, luas juring POQ adalah 246,4 cm²