Jawaban:

misalkan :

• p¹ = 10x

• l¹ = 7x

L¹ = p¹ × l¹

1750 = 10x × 7x

1750 = 70x²

x² = 1.750 / 70

x² = 25

x = √25

x = 5

=> ukuran kebun pak kuri :

p¹ = 10x = 10 × 5 = 50 m

l¹ = 7x = 7 × 5 = 35 m

=> ukuran kebun pak Kresna :

p² = 2,5 p

p² = 2,5 × 50

p² = 125 m

l² = 3 l¹

l² = 2 × 35

l² = 105 m

=> keliling kebun pak Kresna :

K = 2 × ( p + l )

K² = 2 × ( p² + l² )

K² = 2 × ( 125 + 105 )

K² = 2 × 230

K² = 460 m

=> luas kebun pak Kresna :

L = p × l

L² = p² × l²

L² = 125 × 105

L² = 13.125 m²

Penjelasan:

Detail Jawaban :

kelas : Vll

mapel : matematika

Bab : perbandingan dan artimatika sosial

done !