Quiz about Topic 13 Quiz

Question 1

In triangle $$ABC$$ , the sides have lengths $$AB = 7$$ , $$BC = 5$$ , and $$AC = 9$$ . Which of the following is true?

Accepted Answer

$$AB + BC > AC$$

Answer

$$AB + BC < AC$$

Answer

$$AB + AC < BC$$

Answer

$$AC + BC < AB$$

Question 2

In triangle $$XYZ$$ , $$XY = 8$$ , $$YZ = 6$$ , and $$XZ = 10$$ . Which side is the longest?

Accepted Answer

$$XZ$$

Answer

$$XY$$

Answer

$$YZ$$

Answer

All sides are equal

Question 3

In triangle $$ABC$$ , $$AB = 6$$ , $$BC = 8$$ , $$AC = 10$$ . Which angle is the largest?

Accepted Answer

$$\angle B$$

Answer

$$\angle A$$

Answer

$$\angle C$$

Answer

All angles are equal

Question 4

Which of the following is NOT a possible set of side lengths for a triangle?

Accepted Answer

$$2, 2, 5$$

Answer

$$3, 4, 5$$

Answer

$$6, 7, 8$$

Answer

$$5, 5, 5$$

Question 5

In triangle $$DEF$$ , $$DE = 5$$ , $$EF = 12$$ , $$DF = 13$$ . Which angle is the smallest?

Accepted Answer

$$\angle F$$

Answer

$$\angle D$$

Answer

$$\angle E$$

Answer

All angles are equal

Question 6

In triangle $$ABC$$ , $$AB = 5$$ , $$BC = 7$$ , $$AC = 9$$ . Which angle is the smallest?

Accepted Answer

$$\angle C$$

Answer

$$\angle A$$

Answer

$$\angle B$$

Answer

All angles are equal

Question 7

Which of the following sets of numbers can be the lengths of the sides of a triangle?

Accepted Answer

$$2, 2, 3$$

Answer

$$1, 2, 3$$

Answer

$$4, 4, 8$$

Answer

$$5, 1, 7$$

Question 8

In triangle $$ABC$$ , if $$AB = 8$$ , $$BC = 15$$ , $$AC = 17$$ , which angle is the right angle?

Accepted Answer

$$\angle B$$

Answer

$$\angle A$$

Answer

$$\angle C$$

Answer

None

Question 9

Which of the following is NOT always true for triangles?

Accepted Answer

All sides are equal

Answer

The sum of any two sides is greater than the third side

Answer

The sum of the angles is $$180^\circ$$

Answer

The largest angle is opposite the longest side

Question 10

The triangles are similar, solve for the question mark.

Accepted Answer

18

Answer

8

Answer

12.5

Answer

24

Question 11

Solve for X

Accepted Answer

7.5

Answer

4.8

Answer

13.33

Answer

5

Question 12

Solve for x.

Accepted Answer

x = 5

Answer

x = 2

Answer

x = -1

Answer

x = 1

Question 13

Find the value of x.

Accepted Answer

x = 4.5

Answer

x = 9

Answer

x = 30

Answer

x = 3

Question 14

Find the value of x

Accepted Answer

22

Answer

14.7

Answer

49.5

Answer

18

Question 15

Find the value of x.

Accepted Answer

x = 27.3

Answer

x = 20.8

Answer

x = 63.7

Answer

x = 21.4

Question 16

Does a triangle with these side lengths exist?
15, 12, 9

Accepted Answer

Yes

Answer

No

Answer

I don't know.

Question 17

Select the measurements that match the sides of a triangle.

Accepted Answer

7, 7, 7

Answer

7, 9, 19

Answer

7, 12, 1

Answer

7, 7, 16

Question 18

Find ZY

Accepted Answer

6

Answer

12

Answer

24

Answer

3

Question 19

Find x.

Accepted Answer

x = 15

Answer

x = 12

Answer

x = 11

Answer

x = 9

Question 20

What is a line segment or ray drawn from a vertex that divides the angle into two congruent angles?

Accepted Answer

Angle Bisector

Answer

Median of a Triangle

Answer

Altitude of a Triangle

Answer

Perpendicular Bisector of a side of a Triangle

Answer

Midpoint of a Line Segment

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