Me find the center of the radius and write a standard equation for each circle.

The standard equation of a circle of radius R an center at (A, B) is:



The coordinates of the center and the radius of every circle can be seen in the graphs:

a) Center: (0,0); Radius: 5; Equation:
b) Center: (6,4); Radius: 3; Equation:
c) Center: (4,3); Radius: 5; Equation:

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.