Question

Which of the following statements are true? Select all that apply.

The radius of a circle is twice its diameter.
The radius of a circle is twice its diameter.
The formula to find area of a circle is A=πr2
To find the diameter of a circle, divide its circumference by π.
The circumference of a circle is greater than its diameter.
To find the diameter of a circle, multiply the radius by 2.
The diameter can be used to find area of a circle.

Answer 1

Explanation:

By definition, all radii of a circle are congruent, since all the points on a circle are the same distance from the center, and the radii of a circle have one endpoint on the circle and one at the center. ... The length of the diameter is twice that of the radius. Therefore, all diameters of a circle are congruent, too.

Answer 2

The formula to find area of a circle is A=pi(r)2(if that 2 is an exponent ), To find the diameter of a circle divide its circumference by pi, The circumference of a circle is greater than its diameter, To find the diameter of a circle multiply the radius by 2, and the diameter can be used to find area of a circle. :)