1.

if each side of an equal triangle in a unit then find the aera of a triangle by using heron'& formula​

Answer»

as side = a unit

s=( a+a+a)/2

s = 3a/2

by herons formula,

AREA = √s(s-a) (s-b) (s-c)

= √3a/2 (3a/2-a)(3a/2-a)(3a/2-a)

=√ 3a/2( 3a/2- a)

= √ 3a/2( 3a-a/ 2)

= √ 3a/2 X 2a/2

= √ 6a²/ 4

=√ 3 a²/2



Discussion

No Comment Found

Related InterviewSolutions