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QR=√OP²-(R-r)²
=√11²-(7-4)²
=√121-3²
=√121-9
=√112 cm (B)
16.
CD=√AB²-(R+r)²
=√25²-(10+5)²
=√625-15²
=√625-225
=√400
= 20 cm (D)
#Semoga membantu ; )
#Maaf kalau salah : )
=√11²-(7-4)²
=√121-3²
=√121-9
=√112 cm (B)
Jadi, nomor 15 jawaban nya ( B ) √112
16.CD=√AB²-(R+r)²
=√25²-(10+5)²
=√625-15²
=√625-225
=√400
= 20 cm (D)
Jadi, nomor 16 jawabannya (D) 20 cm
Maaf jika ada kesalahan dan kekurangannya