What is an arc of a circle?

Question

sarhamby1227 · Answer

@kalijah13 @kiiraa_x3 @Love_333 @purple_pink

purple_pink · Answer

arc?

sarhamby1227 · Answer

yes the question is
What must be true to define the measure of a distance of an arc between the points A and B on a circle?

wolf1728 · Answer

Here's what wikipedia says: https://en.wikipedia.org/wiki/Arc_(geometry)

wolf1728 · Answer

That question seems as if there should be a graphic with it.

sarhamby1227 · Answer

What must be true to define the measure of a distance of an arc between the points A and B on a circle? 


A unit of measure must be defined for distance.

The distance along the arc has no relation to the angle measure between the two points.

The radius of the circle must be measured.

The circle must be drawn on a coordinate plane

sarhamby1227 · Answer

there isn't.. that's all it has with the choices but thank you tho!

wolf1728 · Answer

You'd need the radius to measure the arc so it seems the answer would be "C"

sarhamby1227 · Answer

that's what my dad said but it was wrong ughh

sarhamby1227 · Answer

it was a

wolf1728 · Answer

arc length = raidus length • angle in radians

sarhamby1227 · Answer

Thank you I found the answer

sarhamby1227 · Answer

Why does the term angle need to be defined prior to defining perpendicular lines? Explain.

Can you help me with this one?