Free Printable Triangles Review

Worksheets

Triangles Review

Total questions: 30

Worksheet time: 2hrs 30mins

Name

Class

Date

Find the missing angle measure.

146°

34°

36°

136°

Find the missing angle measure.

140°

130°

50°

90°

What is the sum of the angles inside of a triangle?

90 Degrees

180 Degrees

360 Degrees

45 Degrees

Find the measure of the indicated angle.

$107.5\degree$

$90\degree$

$108.5\degree$

$8.5\degree$

A student is trying to construct triangles using four different sets of angles. The angles in each set are given below. Which set will form a triangle?

45°, 65°, 70°

150°, 110°, 100°

50°, 50°, 50°

90°, 90°, 90°

Find the measure of the angle indicated.

139°

66°

138°

116°

What is the largest angle?

What is the smallest angle?

What is the biggest side?

10.

What is the smallest side?

11.

Which angle is the largest?

All of the above

12.

None

13.

None

14.

Which of the following sets of side lengths could produce a triangle. SELECT ALL THAT APPLY.

4, 4, 4

5, 5, 10

3, 6, 9

5, 7, 11

13, 5, 6

15.

Given are the lengths of two sides of a triangle. Find the range of lengths for the third side. 7 mm, 4 mm

more than 3 but less than 11

more than 11 but less than 3

less than 3 but more than 11

16.

Which of the following does not represent the lengths of the sides of a triangle?

2 cm, 6 cm, 7 cm

5 cm, 2 cm, 5 cm

5 cm, 5 cm, 8 cm

3 cm, 10 cm, 15 cm

17.

Which set of numbers represents the side lengths of a triangle?

{5,18,13}

{6,17,22}

{16,24,7}

{26,8,15}

18.

Will these side lengths make a triangle? 5 cm, 7 cm, 9 cm

YES

19.

Will these side lengths make a triangle? 3 ft, 12 ft, 8 ft

YES

20.

Which range could be the measurement of the third side of a triangle if the other two sides were 21cm and 15 cm?

7 - 14

17-22

1-5

6-14

21.

9) Given are the lengths of two sides of a triangle. Find the range of lengths for the third side. 7 ft, 13 ft

more than 6 but less than 20

more than 20 but less than 6

less than 6 but more than 20

22.

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

32, 34, 60

28, 30, 58

13, 20, 27

2, 4, 5

23.

What is a possible third side to a triangle with side lengths of 13 and 4?

24.

Identify the largest angle.

∠N

∠Q

∠P

25.

Identify the smallest angle.

∠K

∠L

∠M

26.

List the angles in order by measure, smallest to largest.

∠B, ∠A, ∠C

∠A∠,B, ∠C

∠A, ∠C, ∠B

27.

Identify the longest side measure.

28.

List the side measures in order, shortest to longest.

QM, QP, MP

MQ, MP, QP

MP, MQ, QP

29.

Identify the shortest side measure.

30.