Question

The altitude of an equilateral triangle is 3 root 3cm. Find its area

Answer 1

Answer:

Step-by-step explanation:

by applying sin60'=√3/2

sin60=p/h

sin60=3√3/h. (h=side of ∆)

√3/2=3√3/h

h=6

area of equilateral ∆=√3/4×side square

by applying

area of ∆=9√3