Question

Which is the area of circle x square +y square =16 ?
a. 4π
b.16π
c.24π
d.32π​

Answer 1

Step-by-step explanation:

x^2 + y^2 = 16

(x + y)^2 - 2xy = 16

(x+y)^2 = 16 + 2xy

x + y = √16 + √2xy

x = √16 + √2xy - y

x^2 = 16 + 2xy - y^2

x^2 = 4(4 + 1/2xy - 1/4y^2)

x^2 = 4π where π = (4 + 1/2xy - 1/4y^2)

Answer 2

Understand...................