Diketahui ABC ,A = 90 , AB = 7 cm, dan BC = 25 cm. Panjang jari2 lingkaran luar segitiga tersebut adalah
santhhidevi9
Dik : a = 7 cm b = 25 cm c = √25²-7² = √625-49 = √576 = 24 LΔ = 1/2.a.t = 1/2.7.24 = 7.12 = 84 cm² dit : rl = ... cm jwb : a.b.c/4LΔ = 7.25.24/4(84) = 12,5 cm
b = 25 cm
c = √25²-7² = √625-49 = √576 = 24
LΔ = 1/2.a.t = 1/2.7.24 = 7.12 = 84 cm²
dit : rl = ... cm
jwb : a.b.c/4LΔ = 7.25.24/4(84) = 12,5 cm