Alas prisma berbentuk belah ketupat. Panjang rusuk alas = 13 cm. Panjang salah satu diagonal alas = 24 cm. Tinggi prisma 20 cm. Berapa volume prisma?

By Admin ReiPosted on October 28, 2022

Alas prisma berbentuk belah ketupat. Panjang rusuk alas = 13 cm. Panjang salah satu diagonal alas = 24 cm. Tinggi prisma 20 cm. Berapa volume prisma?

Panjang rusuk = 13
diagonal 1 = 24
tinggi = 20
mencari panjang diagonal 2
$d2 = sqrt{ {13}^{2} - {12}^{2} } \ = sqrt{169 - 144} \ = sqrt{25} \ = 5 \ 5 times 2 = 10 \ volume : = luas alas times tinggi : \ frac{1}{2} times 24 times 10 times 20 \ = 2400$

D2 = 2 x (√13² -(24/2)²)
= 2 x (√169-144)
= 2 x √25
= 2 x 5
= 10 cm

V = 10×24/2 x 20 = 120 x 20 = 2.400 cm³