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WorksheetsMath 8 Prefinal (PART 1)- TRIANGLE INEQUALITY
Total questions: 30
Worksheet time: 15mins
Which of the following statements is not true?
∠d = ∠a+∠b
m∠b < m∠d
m∠a < m∠d
∠d = ∠a+∠b
Which shows the sides of ∆XYZ in order from longest to shortest?
ZY, XZ, XY
ZY, XY, XZ
XY, XZ, ZY
XY, YZ, ZX
Carlos has 60 feet of fence to make a triangular garden. Which of the following sets of side lengths will NOT work?
20 feet, 20 feet, 20 feet
15 feet, 20 feet, 25 feet
10 feet, 25 feet, 25 Feet
10 feet, 15 feet, 35 feet
Angle 4 is an exterior angle of ∆PQR. Which statement is true?
m∠3 > m∠4
m∠4 > m∠2
m∠4 < m∠2
m∠1 < m∠4
Find the possible values of x.
9 < x < 15
6 < x < 9
3 < x < 16
3< x< 15
A triangular playground has two sides measuring 50 feet and 85 feet. What are the possible measures of the third side of the triangle?
0 feet and 134 feet
36 feet and 134 feet
35 feet and 135 feet
0 feet and 135 feet
In the figure below m∠P < m∠X. What conclusion can you make using the Hinge Theorem?
PR = XZ
PQ = XY
QR> YZ
QR< YZ
In ∆ABC and ∆XYZ, AB = XY, BC =YZ, and m∠B> m∠Y. What statement describes the relationship between AC and XZ?
AC≤ XZ
AC< XZ
AC> XZ
AC = XZ
Which inequality describes the possible values of x?
x> 120
x < 120
x> 30
x<30
Which statement can be proven using the converse of the Hinge Theorem?
m∠ EAB < m∠CBD
m∠ EAB > m∠CBD
EB > CD
EB < CD
Which of the following statement is true.
JL = KL
KL = KM
JL< KM
JL > KM
Which of the following statement is true if m∠QRW < m∠XRW?
WX = RW
QW = RW
WX < QW
WX>QW
Maria has 80 feet of fence to make a triangular garden. Which of the following sets of side lengths will NOT work?
20 feet, 28 feet, 30 feet
20 feet, 20 feet, 25 feet
18 feet, 26 feet, 36 feet
12 feet, 16 feet, 36 feet
Angle 2 and 3 are interior angles of ∆PQR. Which statement is true?
m∠3 < m∠4
m∠4 > m∠1
m∠3 < m∠2
m∠1 < m∠4
What is the value of x?
88
78
68
66
A triangular garden has two sides measuring 15 feet and 25 feet. What are the possible measures of the third side of the triangle?
11feet to 40 feet
10 feet to 40 feet
11 feet to 39 feet
0 feet to 10 feet
In the figure below m∠P < m∠X. What conclusion can you make using the Hinge Theorem?
PR = XZ
PQ = XY
QR> YZ
YZ > QR
In ∆MNY and ∆QRS, MN=QR, NY=RS, and m∠N>m∠R. What statement describes the relationship between AC and XZ?
MY≤ QS
MY< QS
MY> QS
MY = QS
Find the range of possible measures for the third side.
10 < x < 12
4 < x < 12
8 < x < 10
4 < x < 8
Find the value of x
122°
120°
111°
102°
The triangle inequality theorem states the sum of the lengths of any two sides of a
triangle is ______________ the length of the third side.
less than or equal to
greater than or equal to
less than
greater than
Name the smallest angle in this triangle.
None of these
∠V
∠O
∠L
Does this triangle with these side lengths exist? 12, 9, 6
Maybe
I don’t know
No
Yes
In ∆CAT and ∆DOG shown below, which of the following statement is true?
DG is longer than CA
CA is longer than DO
DG is shorter than CT
CT is longer than DG
Two sides of a triangle have side length of 15 meters and 10 meters. What is the range of possible lengths of the third side?
6 > x > 12
5 < x < 26
10 > x >15
7 > x > 5
Cathy has a pet rabbit and wants to build a pen for it. She has 3 pieces of lumber: one is 4 m, one is 8 m, and the other is 9 m long. Can she build a closed triangular pen with these three boards
yes
no
maybe
sometimes
Which of the following could be the length of AB ?
1
2
5
3
In ∆TOP , TO =8, TP =10, and OP = 6. Name the smallest and largest angle.
smallest ∠O, largest ∠T
smallest ∠T, largest ∠O
smallest ∠O, largest ∠P
none of these
Steven has proved that LO > EO . Which of the following statement is not part of his
proof?
OV ≅ OV
∠L < ∠E
∠LOV + ∠OVE = 180
LV ≅ VE
If side A is congruent to side D, and side C is congruent to side F, then angle X is greater than Y, then
That is not possible
Side B is twice larger than side E
Side E is greater than side B
Side B is greater than side E
