Question

in a circular Park of diameter for 1428 a pond is constructed in the form of a circle with radius 196 metre find the area of the land left out​

Answer 1

Answer:

The area of land that left out is 1480133.16 m²

Step-by-step explanation:

Given as :

The diameter of circular park = D = 1428 meter

So, The radius of circular park = R = $\dfrac{D}{2}$

i.e R = $\dfrac{1428}{2}$

Or, R = 714 meter

Area of circular park = A = π × radius²

Or, A =  3.14 × (714)²

∴ Area of park = 1600759.4 m²

Again

A pond is constructed in the form of circle

The Radius of pond = r = 196 meter

The Area of pond = A' = π × radius²

Or, A' = π × (196)²

∴ Area of pond = 120626.24 m²

Now,

The area of land that left out = Area of park - Ares of pond

i.e The area of land that left out =  A - A'

Or, The area of land that left out = 1600759.4 m² - 120626.24 m²

∴ The area of land that left out = 1480133.16 m²

Hence, The area of land that left out is 1480133.16 m² Answer