Question

maths sum chapter Heron s formula​

Answer 1

hey mate

here is the answer....

Answer:

by using herons formula,we get

area of an equilateral ∆=√3a²/4

where a=equal sides

thus,

√3a²/4=25√3

=>a²=100

=>a=±10

thus, equal sides (a)=10 cm (as a≠-ve)

thus,

the perimeter of the ∆=3*a

=>3*10 cm

=>30 cm(answer)