TOLONG YA JAWABANNYA YG BENAR JUGA PAKE CARA NANTI KU FOLLOW
Jawaban:
1.
2.
Penjelasan dengan langkah-langkah:
1.
S = 24 cm
L = S × S = 24 × 24 = 576
K = 2 × ( S + S ) = 2 × ( 24 + 24 ) = 2 × 48 = 96
2.
P = 39 cm
L = 15 cm
- L = P × L = 39 × 15 = 585
- K = ( 2 × P ) + ( 2 × L ) = ( 2× 39 ) + ( 2 × 15 ) = 78 + 30 = 108
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Jawaban:
Persegi
Luas = 576 cm²
Keliling = 96 cm
Persegi panjang
Luas = 585 cm²
Keliling = 108 cm
Segitiga
Luas = 600 cm²
Keliling = 140 cm
Penjelasan dan langkah-langkah:
1. Persegi, s = 24 cm
Luas = sisi×sisi = 24×24 = 576 cm²
Keliling = 4 × sisi = 4 × 24 = 96 cm
2. Persegi Panjang, P = 39 cm, L = 15 cm
Luas = panjang×lebar = 39 × 15 = 585 cm²
Keliling = 2×(p+l) = 2×(39+15) = 108 cm
3. Segitiga, a = 40 cm, s = 50 cm, t = 30 cm
Luas = 1/2 × alas × tinggi = 1/2 × 40 × 30 = 600 cm²
Keliling = a + b + c = 50 + 40 + 50 = 140 cm
Maaf kalau ada yang salah