Question

Equation of a circle which whose radius is "7cm" and equations of two diameters of the circle are x-y=5 and 2x+y=4 is

Answer 1

Answer:

x-y=5

x=5+y=x=5-2=x=3

2x+y=4

2x=4-y

x=4-y/2

5+y=4-y/2

10+2y=4-y

2y+y=4-10

3y= -6

y= -6/3

y=-2