Math, asked by mahimamenda6896, 5 months ago

2. Selisih umur seorang ayah dan anak perempuan adalah 26 tahun, sedangkan lima tahun yang lalu jumlah umur keduanya 34 tahun. Tentukan model matematika yang mungkin dan permasalahan tersebut !

Answers

Answered by Anonymous
1

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In the Isosceles Triangle ABC,

∠BAC = 30°

So,

∠CBA also = 30° = x (Opposite side in a Isosceles ∆)

_____________________________________

If ∠BAC & ∠CBA = 30°

Then,

∠BAC + ∠CBA + ∠ACB = 180° (Angle Sum Prop. of a Triangle)

➠ 30° + 30° + ∠ACB = 180°

➠ ∠ACB = 180° - 60°

➠ ∠ACB = 120°

If ACB = 120° Then,

∠BCD = 180° - 120°

∠BCD = z = 60°

___________________________________

If z = 60°

Then,

Y also = 60° (Opp. Sides in an Isosceles ∆ )

____________________________________

Overall,

x = 30°

y = 60°

z = 60°

.

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