Question

)The length of altitude of an equilateral triangle of side 'a' unit is?

Answer 1

Answer:

root 3/2 a

Step-by-step explanation:

CD=a/2

In triangle ACD,

AC^2=CD^2+AD^2(Pythogorous rule)

a^2=(a/2)^2+AD^2

AD^2=A^2_ a^2/4

AD^2=3/4a^2

AD=ROOT 3/2a