GSPD = √P² - (R + r)²
= √15² - (4,5 + 4,5)²
= √(15(15) - 9²
= √225 - (9(9)
= √225 - 81
= √144
= √12²
= 12 CM (B)
Jawaban:
B. 12 cm
Penjelasan dengan langkah-langkah:
[tex]m = \sqrt{d {}^{2} - (R + r) {}^{2} } [/tex]
Dimana:
m = garis singgung persekutuan dalam
d = jarak kedua pusat lingkaran (15 cm)
R = jari-jari lingkaran besar (4,5 cm)
r = jari-jari lingkaran kecil (4,5 cm)
..
[tex]m \: = \sqrt{15 {}^{2} - (4.5 + 4.5) {}^{2} } [/tex]
[tex]m = \sqrt{225 - 81} [/tex]
[tex]m = \sqrt{144} [/tex]
[tex]m = 12 \: cm[/tex]
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alfat}}[/tex]
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GSPD = √P² - (R + r)²
= √15² - (4,5 + 4,5)²
= √(15(15) - 9²
= √225 - (9(9)
= √225 - 81
= √144
= √12²
= 12 CM (B)
Jawaban:
B. 12 cm
Penjelasan dengan langkah-langkah:
[tex]m = \sqrt{d {}^{2} - (R + r) {}^{2} } [/tex]
Dimana:
m = garis singgung persekutuan dalam
d = jarak kedua pusat lingkaran (15 cm)
R = jari-jari lingkaran besar (4,5 cm)
r = jari-jari lingkaran kecil (4,5 cm)
..
[tex]m \: = \sqrt{15 {}^{2} - (4.5 + 4.5) {}^{2} } [/tex]
[tex]m = \sqrt{225 - 81} [/tex]
[tex]m = \sqrt{144} [/tex]
[tex]m = 12 \: cm[/tex]
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alfat}}[/tex]