r3 = r
r2 = 2r3 = 2r
r1 = 4r3 = 4r
LA1 = LP – LL
LA1 = (8r x 8r) – (phi x (4r)2)
LA1 = 64r2 – phi x 16 r2
LA2 = LP – LL
LA2 = (8r x 8r) – 4(phi x (2r)2)
LA2 = 64r2 – 4(4 phi r2)
LA2 = 64r2 – 16 phi r
r3 = r
r2 = 2r3 = 2r
r1 = 4r3 = 4r
LA1 = LP – LL
LA1 = (8r x 8r) – (phi x (4r)2)
LA1 = 64r2 – phi x 16 r2
LA2 = LP – LL
LA2 = (8r x 8r) – 4(phi x (2r)2)
LA2 = 64r2 – 4(4 phi r2)
LA2 = 64r2 – 16 phi r
Editor: Muhammad Khusaini
Sumber: buku.kemdikbud.go.id