Question

A circular park has a rad
ius of 300 meters. There is a uniform circular path with a width of 3.5 meters outside the park. Set up an equation to find the area (A) of the path.

Answer 1

Answer:

6638.5 m²

Step-by-step explanation:

area of the path= area of the large circle - area of the small circle

area of  circle = πr²

pi = 22/7

small circle = π × 300× 300

=(22×300×300)÷7

=282857.142857 m²

large circle radius = 300 + 3.5= 303.5

area = (22×303.5×303.5)÷7

289495.642857 m²

area of the path= 289495.642857 - 282857.142857

  = 6638.5 m²

Answer 2

Answer:

2112.25 π sq m

Step-by-step explanation:

r-radius of inner circle -300m

R radius of outer circle-300+3.5 =303.5m

Area of circular pathway=π(R^2-r^2)

=π[(303.5)^2-(300)^2]

=π[303.5+300][303.5-300]

=π603.5*3.5

2112.25π