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- 1. Multiple Choice
The sum of the interior angles in a triangle is ...
360 degrees
180 degrees
90 degrees
540 degrees
- 2. Multiple Choice
If two angles in a triangle are and , what is the measure of the third angle?
- 3. Multiple Choice
*Select all that apply*
Equilateral triangles ...
have three angles that are the same measure
have three side lengths that are the same measure
have only acute angles
have three angles that are each 60 degrees
- 4. Multiple Choice
Isosceles triangles ...
have three different side lengths
have two side lengths that are congruent
have two angles that are congruent
always have a 90 degree angle
- 5. Multiple Choice
The word "congruent" means ...
obtuse
different
acute
equal
- 6. Multiple Choice
Scalene triangles ...
have three different angle mesures
have two side lengths that are congruent
have three different side lengths
always have one right angle
- 7. Multiple Choice
acute
congruent
obtuse
right
- 8. Multiple Choice
Acute triangles have ...
have one obtuse angle
three angles that are acute
one right angle
have three angles that are less than 90 degrees
- 9. Multiple Choice
A right triangle has ...
one right angle
three acute angles
two right angles
three obtuse angles
- 10. Multiple Choice
How do you classify this triangle?
acute
obtuse
right
scalene
- 11. Multiple Choice
What is the measure of angle a?
180
60
30
50
- 12. Multiple Choice
What is the measure of the missing angle?
80
60
50
70
- 13. Multiple Choice
The triangle inequality theorem states that the sum of any two sides must be ________________ the length of the third side.
less than
greater than
equal to
less than or equal to
- 14. Multiple Choice
The triangle inequality theorem states that the _________ of any two sides must be greater than the length of the third side.
quotient
difference
sum
product
- 15. Multiple Choice
Three line segments have measures of 12 cm, 7 cm, and 5 cm. Will the segments form a triangle?
Yes
No
- 16. Multiple Choice
Three line segments have measures of 9 cm, 5 cm, and 6 cm. Will the segments form a triangle?
Yes
No
- 17. Multiple Choice
A triangle has two angles that are 65 degrees and 50 degrees. What must the third angle be?
65
75
25
60
- 18. Multiple Choice
The angles inside an equilateral triangle are all ...
20 degrees
50 degrees
60 degrees
45 degrees
- 19. Multiple Choice
Is it possible to draw a triangle with the following angle measures: 80 degrees, 35 degrees, 55 degrees?
Yes
No
- 20. Multiple Choice
Is it possible to draw a triangle with the following angle measures: 45 degrees, 120 degrees, and 15 degrees?
Yes
No
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