Jawab:
Penjelasan dengan langkah-langkah:
segitiga besar
1 : x = 2 : 20
2x = 20
x = 10
1 : x = : y
y = x = 10
segitiga kecil
1 : z = : x
z =
=
luas segitiga = LΔ besar - LΔ kecil
= (1/2 y x) - (1/2 z x)
= (1/2 x 10 x 10) - (1/2 x x 10)
= 50 - =
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Jawab:
Penjelasan dengan langkah-langkah:
segitiga besar
1 : x = 2 : 20
2x = 20
x = 10
1 : x = : y
y = x = 10
segitiga kecil
1 : z = : x
z =
=
=
=
=
luas segitiga = LΔ besar - LΔ kecil
= (1/2 y x) - (1/2 z x)
= (1/2 x 10 x 10) - (1/2 x x 10)
= 50 - =