Question

Prove that area of equilateral triangle is root 3 by 4 into side Cube

Answer 1

Answer:

Step-by-step explanation:side=a

S=a+a+a/2=3a/2

Area=under root S(S-a) (S-b) (S-c)

Under root 3a/2(3a/2-a) (3a/2-a) (3a/2-a)

Under root 3a/2×a/2×a\2×a/2

1/2×1/2×a×a×root 3

Root3a^2/4