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= 150 x 1/10
= 15
jawabannya 15 cm
a = 20 cm
Dit : t = .... cm
Jwb : L = 1/2 × a × t
150 cm = 1/2 × 20 cm ×t
150 cm = 10 cm ×t
t = 150 cm ÷ 10 cm
= 15 cm
Jadi, tinggi segitiga tersebut adalah 15 cm.