Question

A park is in the form of a rectangle 145 m by 100 m. At the centre of the park, there is a circular lawn. The area of the park excluding the lawn is 3196

Answer 1

Hey dear,
You have posted incomplete question, but I think you want to know radius of circular lawn.

◆ Answer-
r = 60 m

◆ Explanation-
# Given-
l = 145 m
b = 100 m
A = 3196 m^2

# Solution-
Let r be the radius of circular lawn.

Total area of park = Area of circular lawn + Excluded area
l×b = πr^2 + A
145×100 = πr^2 + 3196
πr^2 = 11304
r^2 = 3600
r = 60 m.

Thus, radius of circular lawn is 60 m.

Hope that is useful...