Unique Triangles - Assessment

1.

Multiple Choice

1 min

1 pt

How many triangles exist with the given angle measures? 55°, 45°, 90°

No triangle exists

Exactly one unique triangle exists

More than one triangle exists

2.

Multiple Choice

1 min

1 pt

What is the missing angle?

90°

87°

80°

88°

3.

Multiple Choice

3 mins

1 pt

How many triangles exist with the following angle measures?
80°, 50°, 50°

No triangle exists with the given angle measures.

More than one unique triangle exists with the given angle measures.

Exactly one unique triangle exists with the given angle measures.

4.

Multiple Choice

3 mins

1 pt

Does a triangle with these side lengths exist?
33, 16, 17

Yes

No

I don't know.

5.

Multiple Choice

3 mins

1 pt

Find the missing angle.

29°

39°

49°

59°

6.

Multiple Choice

1 min

1 pt

Which set of side lengths will make a triangle?

6, 8, 13

7, 9, 18

7, 7, 14

2, 6, 9

7.

Multiple Choice

1 min

1 pt

Which set of side lengths will NOT make a triangle?

3, 4, 5

1, 3, 4

3, 5, 7

2, 8, 9

8.

Multiple Choice

3 mins

1 pt

A triangle has angle measurements of 54°, 52°, and 74°. What kind of triangle is it?

acute triangle

right triangle

obtuse triangle

none of the above

9.

Multiple Choice

3 mins

1 pt

If 2 of the angles of a triangle are 30 and 70 degrees, the third angle measures...

80

100

60

90

10.

Multiple Choice

3 mins

1 pt

Which of these lengths CANNOT represent the sides of a triangle?

32, 34, 60

28, 30, 58

13, 20, 27

2, 4, 5

11.

Multiple Choice

1 min

1 pt

If the given side lengths of a triangle are 16 and 10 what can be the third side?

25

22

27

21

12.

Multiple Choice

1 min

1 pt

Which set of side lengths will make a triangle?

6, 8, 13

7, 9, 18

7, 7, 14

2, 6, 9

13.

Multiple Choice

3 mins

1 pt

How many triangles exist with the given side lengths?
7 in, 7 in, 7 in

No triangle exists with the given side lengths.

More than one unique triangle exists with the given side lengths.

Exactly one unique triangle exists with the given side lengths.

14.

Multiple Choice

1 min

1 pt

Which choice shows three lengths that cannot be the lengths of the three sides of a triangle?

2 cm, 8 cm, 8 cm

2 cm, 3 cm, 6 cm

4 cm, 5 cm, 7 cm

5 cm, 6 cm, 9 cm

15.

Multiple Choice

1 min

1 pt

Which triangle cannot be drawn?

acute scalene triangle

obtuse scalene triangle

isosceles right triangle

obtuse equilateral triangle

16.

Multiple Choice

1 min

1 pt

Two angles of a triangle measure 30° and 108°. What is the measure of the third angle of the triangle?

42

45

62

17.

Multiple Choice

1 min

1 pt

In a triangle, how many total degrees are there?

100%

180 degrees

it varies

360 degrees

18.

Multiple Choice

1 min

1 pt

.
.
.
.
What is the name of this kind of triangle?

Right

Scalene

Isosceles

Equilateral

19.

Multiple Choice

30 sec

1 pt

.
.
.
What is the name of this kind of triangle?

Right

Scalene

Isosceles

Equilateral

20.

Multiple Choice

1 min

1 pt

What kind of triangle is this?

Acute

Right

Sparkly

Obtuse

21.

Multiple Choice

1 min

1 pt

How many acute angles must an acute triangle have?

2

1

4

3

22.

Multiple Choice

1 min

1 pt

Find the measure of the indicated angle.

26

36

85

144

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