Unit 11 - Sectors, Arcs, Central Angles, Inscribed Angles, Chords, Intersecting Chords

Question 1

Formula for Area of a sector

Answer 1

angle over 360 times pi radius squared

Question 2

What can pi equal

Answer 2

180

Question 3

Formula for Arc Length

Answer 3

angle over 360 times 2 pi r

Question 4

greater than 180

Answer 4

major arc (3 letters)

Question 5

less than 180

Answer 5

minor arc (2 letters)

Question 6

measure of arc = to ?

Answer 6

central angle

Question 7

what is a chord

Answer 7

line segment in a circle with endpoints on the circle

Question 8

what is an inscribed angle

Answer 8

angle formed inside a circle from 2 chords sharing an endpoint

Question 9

measure of central angle

Answer 9

same as intercepted arc

Question 10

measure of inscribed angle

Answer 10

half of intercepted arc

Question 11

measure of arc/angle with intersecting chords

Answer 11

add the 2 angles of the arcs and divided by 2

Question 12

what is a secant

Answer 12

line passes through two points on a circle, can form a chord

Question 13

how to get measurement of secant

Answer 13

subtract the 2 angles from each other and divide by 2 (the angle ur looking for is outside the circle)

Question 14

how to get measurement of tangent

Answer 14

same as secant