Is it a triangle?
3rd Side Length
Triangle Sum Theorem
Largest Side
Largest angle?
100
5, 12,13
Yes
100
1 and 9
Between 8 and 10.
100
What is the missing angle of the triangle? 45°, 60°
75°
100

A = 36 B = 64 C = 80

AB

100

AB = 14 BC = 20 AC = 31

Angle B

200
0, 1, 1
No
200
2 and 4
Between 2 and 6.
200
What is the missing angle of the triangle? 108°, 70°
2°
200

X = 40 Y = 90 Z = 50

XZ

200

XY = 22 YZ = 27 XZ = 22

Angle X

300
5, 5, 5
Yes
300
5 and 5
Between 0 and 10.
300
What is the value of x if the following are the three angles of a triangle? 2x, 40°, 60°
x = 40
300

D = 22 E = 100 F = 58

DF

300

AC = 4 BC = 4 AB = 4

All are the same

400
32°, 38°, 112°
No, 32 + 38 + 112 = 182 which is not 180°
400
20 and 45
Between 25 and 65.
400
What is the value of x if the following are the three angles of a triangle? 3x, 2x + 80, 50
x = 10
400

P = 178 Q = 1 R = 1

QR

400

DE = 32 EF = 89 DF = 90

Angle E

500
a, b, a+b
No
500
x and y
Between x - y and x + y
500
What are the measurements of the three angles if the following are the three angles of a triangle? 5x, 7x, 8x
45°, 63°, 72°
500

R = 35 S = 45 T = 100

RS

500

MN = 10 NO = 4 MO = 7

Angle O

M
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