Explain how the distance formula can be used to find the diameter of a circle?

A line segment connecting two points on the circle and going through the center is called a diameter of the circle. ... Use the Distance Formula to find the equation of the circle. √(x2−x1)2+(y2−y1)2=d. Substitute (x1,y1)=(h,k),(x2,y2)=(x,y) and d=r .

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)