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a² = b² + c²
a² = 6² + 8²
a² = 36 + 64
a = √100
a = 10
s = Keliling segitiga / 2
s = ( 6 + 8 + 10) / 2
s = 24 / 2
s = 12
Luas segitiga :
L =
L =
L =
L = √576
L = 24
Jari" luar :
Rl = a × b × c
4 × L
Rl = 6 × 8 × 10
4 × 24
Rl = 5 cm
sisi miring menggunakan rumus phitagoras, pasti hasilnya 10, karna ini segitiga istimewa dengan a:b:c=3:4:5
jadi c=10
L segitiga=1/2 .6.8=24