Question

Tolong jawab pakai caranya ya kak.....

Answer 1

Garis singgung^2 = titik pusat^2 - (r1 - r2)^2
15^2 = 17^2 - (10 - r2)^2
225 = 289 - (10 - r2)^2
(10 - r2)^2 = 289 - 225
(10 - r2)^2 = 64
(10 - r2)^2 = 8^2
10 - r2 = 8
10 - 8 = r2
2 = r2
(maaf klo slh)