# The Circle Flashcards

Flashcards by Tyler Workmon, updated more than 1 year ago
 Created by Tyler Workmon about 6 years ago
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### Description

Flashcards on The Circle Flashcards, created by Tyler Workmon on 02/25/2015.

## Resource summary

 Question Answer What is the a radius? Half of the diameter of a circle What is a diameter? The full length across the middle of a circle How do you find circumference? Two times pi times the radius (2nr) What is the measure of the angle if given the arc? If central angle, they are the same. If inscribed angle, the arc divided by 2 How do you find the measure of a pair of adjacent angles when given the arcs on both sides? Average the two arcs What is an inscribed angle An angle where the vertex is on the side of the circle instead of the middle What is a central angle An angle who's vertex is in the middle of the circle What are tangent angles angles who's vertex lies outside of the circle, and the lines cross at one point on the sides of the circle How many degrees are in half of a circle (Semicircle) 180 How many degrees are in an entire circle 360 To find the measure of a tangent angle you... Subtract the smaller arc from the larger arc and divide by 2 What is a major arc An arc that is greater than 180 What is a minor arc An arc that measures less than 180 What are concentric circles Circles that lie in the same plane, and share the same midpoint What is a semicircle Half of a circle What is circumference Distance all of the way around the circle What is a chord A line whos endpoints are on the edge of a circle How do you find the diameter of a circle Multiply the radius by 2 What is a circle When all points are the same length apart from the center

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