Question

No link please!! But please help!!

Answer 1

Given:

The radius of the circle X is XY.

Coordinates of X are (0,3) and coordinates of Y are (-3,-1).

To find:

The area of the circle.

Solution:

Distance formula:

`D=√((x_2-x_1)^2+(y_2-y_1)^2)`

The radius of the circle is the distance between the points X(0,3) and Y(-3,-1).

`XY=√((-3-0)^2+(-1-3)^2)`

`XY=√((-3)^2+(-4)^2)`

`XY=√(9+16)`

`XY=√(25)`

`XY=5`

The radius of the circle is 5 units.

The area of the circle is:

`A=\pi r^2`

Where, r is the radius of the circle.

Putting
`\pi=3.14, r=5` in the above formula, we get

`A=(3.14)(5)^2`

`A=(3.14)(25)`

`A=78.5`

Therefore, the area of the circle is 78.5 square units.