Question

please solve this problem

Answer 1

given-
pillars=7
distance between them=1m
height of last pillar=10.5
area of the whole triangle=1/2*h*b
in the triangle
h=10.5
b=1+1+1+1+1+1+1
b=7
area=1/2*h*b
1/2*10.5*7
=1/2*73.5
=36.25m
so, measure of the slant pillar is 36.25m