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WorksheetsCircles with Lines, Arc Length & Sector Area, Degrees & Radians
Total questions: 103
Worksheet time: 4hrs 59mins
Solve for x.
4
6
9
7
Solve for x
(a)
Solve for x.
10
15
7.5
8
Solve for x.
18
144
12
16
Solve for x.
(a)
Solve for x.
(a)
Solve for x.
12
1.5
1
4
Solve for x
(a)
Give an example of a chord
line HI
line KL
line GH
line GJ
Give an example of a major arc
arc JH
arc HI
arc JLH
arc JL
opposite angles in any quadrilateral inscribed in a circle are __________ of each other.
complements
supplements
congruent
opposite
One slice of pizza at PIE.ZAA in downtown Asheville has a radius of 14 inches and a central angle 45° . Which expression will find the sector area of the slice?
45×π×14
36045×142
36045×π×142
π(14)2
Same slice....caculate the arc length given: 36045×2π(14)
5.5 inches
11 inches
88 inches
154 inches
What is the arc measure of the missing slice?
28°
56°
332°
360°
What is the arc measure for an inscribed angle 40° ?
20°
40°
80°
360°
Which formula is correct for finding x?
43+33=
43+233=
243+33=
243−33=
Find the missing arc measure by solving 2x−55=15
20°
30°
35°
85°
Which equation would solve for the arc measure x?
2360−x−x=60
2360−x=60
2360−x+x=60
360−x−x=30
Set up the equation for intersecting chords to find the value of a.
6+6=2+a
6×6=2×a
2×6=a×6
66=2a
EXAMPLE: Find x.
20
410
49
361
YOU TRY: Find x.
15
300
400
20
EXAMPLE: Find x.
9
144
36
81
YOU TRY: Find x.
16
26
576
100
How many degrees are in one revolution?
90°
360°
180
How many radians are in one revolution?
π
2π
2π
How many radians are in 60° ?
2π
23π
3π
How many radians are in 45° ?
π
3π
4π
How many radians are in 135° ?
π
43π
34π
How many degrees are in 4π radians?
30°
45°
60°
How many degrees are in 32π radians?
90°
120°
150°
How many degrees are in 45π radians?
270°
225°
180°
If a line is tangent to a circle, then it is perpendicular to the radius at its point of tangency.
TRUE
FALSE
A tangent is a line that touches a circle at exactly two points.
TRUE
FALSE
The measure of an angle formed by the intersection of two tangents on the exterior of the circle is half the sum of the measures of the major and minor arcs.
TRUE
FALSE
The measure of an angle formed by the intersection of a secant and a tangent on the exterior of the circle is half the difference of the measures of their intercepted arcs.
TRUE
FALSE
The measure of an angle formed by two secants intersecting at the exterior of the circle is equal to half the sum of the two intercepted arcs.
TRUE
FALSE
Find the value of x.
15
18
21
28
What is the measure of angle 2?
40 degrees
45 degrees
80 degrees
145 degrees
∠ ABD is formed by a tangent and a secant intersecting outside of a circle. If minor arc AC = 72° and minor arc CD = 132° , what is the measure of ∠ ABD?
30°
36°
42°
48°
If arc VY = 132° and ∠ YUV = 41° , what is the measure of arc XV?
35°
40°
45°
50°
Given: XY=2x and ZY=6x−4 are tangent to Circle A at Point X and Z. Find the value of x.
1
2
3
4
Given: XY=2x and ZY=6x−4 are tangent to Circle A at Points X and Z. How long is XY?
1
2
3
4
If m∠ACE=81° , find measure of arc AC.
40.5°
45.5°
162°
192°
If measure of arc ABC is 199 degrees, find m∠ACD.
99.5°
95.9°
161°
398°
If m∠IHO=53° and arc CA=35° find m arc OI.
18°
71°
88°
106°
If m arc NA =19° and m arc EY = 101° find m∠J.
82°
120°
41°
60°
What is the relationship between two tangents that share a common endpoint outside of the circle?
One is half of the other.
They are perpendicular.
They are congruent.
They are parallel.
What is the relationship between an inscribed angle and its arc?
The angle is half of the arc.
The arc is half of the angle.
They are congruent.
The arc is smaller than the angle.
What is the relationship between congruent chords and their arcs?
The chord bisects the arc.
The arc is half the length of the chord.
The chord is half of the arc.
They are congruent.
Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer to the nearest tenth of a square inch.
25.2 in2
28.5 in2
31.4 in2
38.2 in2
The distance along the edge of a circle between two points is the _________
area of a sector
arc length
arc of a circle
sector of a circle
What is the area of the shaded SECTOR? Round to the nearest hundredth.
9.42 u2
113.10 u2
284.3 u2
452.39 u2
If a quadrilateral is inscribed in a circle, what is the sum of its opposite angles?
90∘ each
180∘ each
360∘ in total
Quadrilateral ABCD is inscribed in the circle. If m∠ A = 95° , what also must be true?
m∠B = 95°
m∠C = 85°
m∠D = 105°
m∠D = 95°
A quadrilateral ABCD is inscribed in circle O. What are the values of x and Y?
X=180+107
Y=180-90
X=180+90
Y=180+107
X=180-107
Y=180-90
X=180
Y=90
Find the circumference of the circle.
38.47 cm
10.99 cm
43.96 cm
21.98 cm
What is this called?
Chord
Minor Arc
Circumference
Secant
if m< CAB = 70° then m(arc CxA) = _____
700
350
1000
1400
Find the measure of ∠HFG
23
44
3
48
Solve for x.
37.5
11
118
15
