Question

the radius of a circle is(x+y-1).find its area​

Answer 1

Answer:

Step-by-step explanation:

radius of circle = X+Y-1

AREA = /pi * X+Y-1 * X+Y-1

= 22/7* X+Y-1 * X+Y-1

Answer 2

Answer: $\pi (x^{2} + y^{2} + 2xy - 2x - 2y +1 )$

Step-by-step explanation:

Given : Radius is x + y - 1

To Find : Area of circle

Solution :

Area of circle = $\pi (radius)^{2}$

∴ Area = $\pi (x + y - 1)^{2}$

            = $\pi (x + y - 1) (x + y -1)$

           = $\pi (x^{2} + y^{2} + 2xy - 2x - 2y +1 )$

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