Question

in an equilateral triangle of sides 3 root3 find the length of the altitude

Answer 1

u should use formula of equilaterl

Answer 2

Answer:

h=4.5 cm or 9/2 cm

Step-by-step explanation:

∵it is a eqΔ area=√3/4side²

side=3√3 cm

altitude=h

area=√3×(3√3)²/4

=√3×9×3/4

=27√3/4   eq---1

area of Δ=1/2bh

=1/2×3√3×h

=3√3/2×h---2

substituting eq--1 in eq---2

27√3/4=3√3/2×h

h=27√3/4÷3√3/2

h=27√3/4×2/3√2

h=9/2

h=4.5 cm