Question

find the area of a triangular garden whose sides are 40m,90m,70m​

Answer 1

Answer:

A=1800m^2

Step-by-step explanation:

A=0.5*90*40

Answer 2

Step-by-step explanation:

by using herons formula calculate it

Step 1: Calculate "s" (half of the triangles perimeter):

s = a+b+c/2

Step 2: Then calculate the Area:

herons formula A = √( s(s-a)(s-b)(s-c) )

sol:

s= 40+90+70/2

= 100

now,

A=√s(s-a)(s-b) (s-c)

=√100x60x10x30

=√1800000

=424.264...