panjang sisi miring segitiga
c² = 12² + 5²
c² = 144 + 25
c² = 169
c = 13 cm
luas segtiga
= 1/2 x alas x tinggi
= 1/2 x 12 x 5
= 30 cm²
Keliling segitiga
= jumlah seluruh panjang sisinya
= 12 + 5 + 13
= 30 cm
Luas permukaan prisma segitiga
= (2 x Luas alas) + (Keliling alas x tinggi)
= (2 x 30) + (30 x 15)
= 60 + 450
= 510 cm²
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panjang sisi miring segitiga
c² = 12² + 5²
c² = 144 + 25
c² = 169
c = 13 cm
luas segtiga
= 1/2 x alas x tinggi
= 1/2 x 12 x 5
= 30 cm²
Keliling segitiga
= jumlah seluruh panjang sisinya
= 12 + 5 + 13
= 30 cm
Luas permukaan prisma segitiga
= (2 x Luas alas) + (Keliling alas x tinggi)
= (2 x 30) + (30 x 15)
= 60 + 450
= 510 cm²