In the diagram below of circle O, chord CD is parallel to diameter AOB and mCD = 130. %3D A What is mAC?

Q: What are the radius units?

A:

Q: 9. Decide whether the figure must be a parallelog %23

A: Topic- geometry

Q: Rewrite each of the sets described below in set builder notation.

A:

Q: The endpoints of a diameter of a circle are shown (-5,4) and (4,-1). What is the center and the…

A:

Q: how is the equation for a circle written?

A: Let us take center of the circle as (h,k) and radius = r.

Q: If D is the midpoint of CE, what is the value of ED?

A: given that D is the mid point of CE. we have to find value of ED.

Q: What portion of a circle does a sector make up?

A:

Q: Place an X in the table to show the shape of the vertical cross section of each figure 7 shown.…

A: This is a Simple question based on cross section of shapes Solution is given below

Q: Define the radius?

A: Radius  is the distance between center of a circle and any point on it's circumference. Radius is a…

Q: re has 16-cm sides. Describe its image for a dilation with center at one 0.8.

A:

Q: Determine the equation of a circle with radius 7, centred at the origin.

A: Equation of the circle passing through centre (x0, y0) and radius r is : (x-x0 ) 2 + (y-y0 ) 2 = r2…

Q: Confirm that the circumference of a circle of radius a is 2pa.

A: Given: Consider a radius of a circle is a. r=a

Q: what's the radius of this circle ?

A: The area of a circle is given by πr2 where r is radius of circle. The area equals 9π ft2.

Q: 2. The diagram below shows a circle centre O, with radius r. The length of arc ABC is 3n cm and 2n…

A:

Q: Reflect the triangle over the y-axis

A:

Q: which is the center of a circle x2 + y2  = 9?

A: given, Equation of a circle is x2 + y2 =9