Sebuah segitiga sama kaki luasnya 240 cm2 . jika alasnya segitiga 20 cm dan kelilingnya 72 cm, tentukan : a.panjang kaki segitiga tersebut! b. tinggi seegitiga tersebut !
RanshiVM
L = 1/2 × a × t 240 = 1/2 × 20 × t 240 = 10t 24 = t
K = a + b + c 72 = s + s + 20 72 = 2s + 20 2s = 72 - 20 2s = 52 s = 26
Jawab ~> a) Panjang kaki segitiga = 24 cm. b) t = 24
240 = 1/2 × 20 × t
240 = 10t
24 = t
K = a + b + c
72 = s + s + 20
72 = 2s + 20
2s = 72 - 20
2s = 52
s = 26
Jawab ~> a) Panjang kaki segitiga = 24 cm.
b) t = 24
b.72-20=52
gt carany dek