Panjang sisi segitiga adalah 6cm,8cm,dan 10cm. Panjang jari-jari lingkaran luar segitiga tersebut adalah..cm

6,8,10
Triple phytagoras

Luas = 1/2 ( a b)
= 1/2 (6 × 8)
= 24

Rumus jri jri luar
= abc /4L
= (6 × 8 × 10 ) / 4(24)
= 480 / 96
= 5 cm

Ko = 6 + 8 + 10
= 24
s = 24 : 2
= 12
L = -/ 12 (12-6) (12-8) (12-10)
= -/ 12 × 6 × 4 × 2
= -/ 3×4 × 3×2 × 4 × 2
= -/ 3^2 × 4^2 × 2^2
= 3 × 4 × 2
= 24 cm^2

R = (6×8×10) : (4×24)
= 480 : 96
= 5 cm