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Classifying Triangles

Total questions: 12

Worksheet time: 24mins

Name
Class
Date
1.

What kind of triangle is shown?

a)

acute scalene triangle

b)

right isosceles triange

c)

right scalene triangle

d)

right acute triangle

2.

What kind of triangle is shown?

a)

obtuse isosceles triangle

b)

obtuse scalene triangle

c)

obtuse acute triangle

d)

acute scalene triangle

3.

What kind of triangle is shown?

a)

acute equilateral triangle

b)

right equilateral triangle

c)

acute isosceles triangle

d)

right isosceles triangle

4.

What kind of triangle is shown?

a)

right isosceles triangle

b)

acute isosceles triangle

c)

acute equilateral triangle

d)

obtuse isosceles triangle

5.

What type of triangle is shown?

a)

acute isosceles triangle

b)

obtuse isosceles triangle

c)

acute equilateral triangle

d)

obtuse scalene triangle

6.

What kind of triangle is shown?

a)

acute scalene triangle

b)

right isosceles triangle

c)

right scalene triangle

d)

right acute triangle

7.

What kind of triangle is shown?

a)

scalene acute triangle

b)

right scalene triangle

c)

acute isoceles triangle

d)

right isosceles triangle

8.

What kind of triangle is shown?

a)

acute triangle

b)

equilateral triangle

c)

isosceles triangle

d)

acute equilateral triangle

9.

What kind of triangle is shown? (Remember to classify the triangle by sides and angles.)

4 lines
10.

What is the missing angle? (Remember, the sum of the angles in any triangle always equals 180 degrees.)

a)

35 degrees

b)

25 degrees

c)

55 degrees

d)

angle measure cannot be determined

11.

What is the measurement of angle R? Explain your thinking.

4 lines
12.

What is the measurement of angle K?

a)

67 degrees

b)

127 degrees

c)

53 degrees

d)

57 degrees