'Til Health Do Us Part: One Woman's Extraordinary Story of Healing

'Til Health Do Us Part: One Woman's Extraordinary Story of Healing

Matematika Sekolah Menengah Pertama 14. Pada gambar di samping panjang OB = 13 cm dan panjang AB = 12 cm. Panjang jari-jari OA = ... cm.

mohon bantuanya kak​

14. Pada gambar di samping panjang OB = 13 cm dan panjang AB = 12 cm. Panjang jari-jari OA = ... cm.

mohon bantuanya kak​

Penjelasan dengan langkah-langkah:

PYTHAGORAS GARIS SINGGUNG LINGKARAN

OB = 13 cm

AB = 12 cm

OA = √(OB² – AB²)

OA = √(13² – 12²)

OA = √(169 – 144)

OA = √25

OA = 5 cm

OB² = OA² + AB²

13² = OA² + 12²

( 13 × 13 ) = OA² + ( 12 × 12 )

169 = OA² + 144

OA² = 169 - 144

OA² = 25

OA = √25

OA = 5 cm

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