Jawaban:
4. Menghitung luas dan keliling segitiga
a. Luas = 24 cm²
Keliling = 24 cm
b. Luas = 96 cm²
Keliling = 48 cm
c. Luas = 8.000 cm²
Keliling = 370 cm
Penjelasan dengan langkah-langkah:
4. Luas segitiga = 1/2 × a × t
Keliling segitiga = a + b + c
a. Luas = 1/2 × 6 × 8
= 1/2 × 48
= 24 cm²
Keliling = 10 + 6 + 8
= 24 cm
b. Luas = 1/2 × 16 × 12
= 1/2 × 192
= 96 cm²
Keliling = 12 + 16 + 20
= 48 cm
c. Luas = 1/2 × 200 × 80
= 1/2 × 16.000
= 8.000 cm²
Keliling = 70 + 100 + 200
= 370 cm
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Jawaban:
4. Menghitung luas dan keliling segitiga
a. Luas = 24 cm²
Keliling = 24 cm
b. Luas = 96 cm²
Keliling = 48 cm
c. Luas = 8.000 cm²
Keliling = 370 cm
Penjelasan dengan langkah-langkah:
4. Luas segitiga = 1/2 × a × t
Keliling segitiga = a + b + c
a. Luas = 1/2 × 6 × 8
= 1/2 × 48
= 24 cm²
Keliling = 10 + 6 + 8
= 24 cm
b. Luas = 1/2 × 16 × 12
= 1/2 × 192
= 96 cm²
Keliling = 12 + 16 + 20
= 48 cm
c. Luas = 1/2 × 200 × 80
= 1/2 × 16.000
= 8.000 cm²
Keliling = 70 + 100 + 200
= 370 cm