Question

A 25 cm wide path is to be made around a circular garden having a diameter of 4 meters. approximate area of the path is square meters is

Answer 1

Radius of circle is 2m and path is 0. 25m then outer circle radius is 2.25m
Pai(r2²-r1²)
Pai(5.06-4)= 3.336m² area of path

Answer 2

Answer:

3.34 sq m

Step-by-step explanation:

Length of the circular path = 25cm (Given)

Diameter of the circular garden = 4m (Given)

Thus,

Area of the circular path = Area of the outer circle - Area of the inner circle

= π {4/2 + 25/100}² - π[4/2]²  

= π [2.25² - 2²]

= π (0.25) × (4.25)  { (a² - b² = (a - b)(a + b) }  

= (3.14) × (1/4) × (17/4)

= 53.38/16

= 3.34 sq m

Therefore, the approximate area of the circular path in square meters is 3.34 sq m