Question

Tolong bantuannya kakak-kakak dan teman-teman semua, jangan sampai salah ya, terimakasih atas bantuannya ​

Answer 1

Verified answer

Penyelesaian

d=√(p²-(R-r)²)

12=√(15²-(R-2)²)

12²=225-(R-2)²

144=225-(R-2)²

(R-2)²=225-144

R-2=√81

R-2=9

R=11cm

Semoga bermanfaat

Answer 2

R - 2 = √15² - 12²

R - 2 = √(15(15) - (12(12)

R - 2 = √225 - 144

R - 2 = √81

R - 2 = √(9(9)

R - 2 = √9²

R - 2 = 9 CM

R = (9 + 2)CM

R = 11 CM