Page 58 - Digital Book Bangun Datar Segitiga Kelas VII

Evaluasi KB 2 (Halaman 27)

No. Kunci Jawaban

1
1
∆ = ⁄ × × ∆ = ⁄ × ×
2
2
1
= ⁄ × 14 × 9
1. 2
= 7 × 9
= 63
2

Langkah 1: Langkah 2:
= 5 + 3 + (4 + 5) = 63,75 disubtitusikan ke:

770 = 12 + 5 5 = 5 (63,75) = 318,75

770 − 5 = 12 3 = 3 (63,75) = 191,25

765 = 12 4 + 5 = 4 (63,75) + 5 = 260

= 765 ∶ 12
= 63,75 Langkah 3:
2.
Alas = 3 = 191,25
Tinggi = 5 = 318,75

1
= ⁄ × ×
2
1
= ⁄ × 191,75 × 318,75
2
= 30.560,156245

= 30.560,15
2

Digital Book Matematika SMP/MTs kelas VII
52