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Triangles Quiz

Total questions: 15

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

What type of triangle is this based on the sides?

a)

equilateral

b)

isosceles

c)

scalene

2.

What type of triangle is this based on the angles?

a)

acute

b)

obtuse

c)

right

3.

What type of triangle is this based on the sides?

a)

equilateral

b)

isosceles

c)

scalene

4.

What type of triangle is this based on the sides?

a)

equilateral

b)

isosceles

c)

scalene

5.

What type of triangle is this based on the angles?

a)

acute

b)

obtuse

c)

right

6.

What type of triangle is this based on the angles?

a)

acute

b)

obtuse

c)

right

7.

Select ALL of the triangles that are right triangles.

a)
b)
c)
d)
8.

Choose ALL of the words that describe this triangle.

a)

obtuse

b)

isosceles

c)

equilateral

d)

acute

e)

scalene

9.

Choose ALL of the words that describe this triangle.

a)

obtuse

b)

isosceles

c)

equilateral

d)

acute

e)

scalene

10.

Leah drew a triangle on a piece of paper. She made one side 5 inches long, another side 4 inches long, and the last side 3 inches long. What kind of triangle did she draw?

a)

isosceles

b)

scalene

c)

equilateral

11.

Select ALL that are correct about this triangle.

a)

Triangle ABC is a right triangle

b)

Triangle ABC is an equilateral triangle

c)

Triangle ABC is a scalene triangle

d)

Triangle ABC is an acute triangle

e)

Triangle ABC has 2 acute angles and 1 right angle

12.

Why is this triangle classified as isosceles?

a)

at least two sides are congruent

b)

at least one angle is acute

c)

all angles are acute

d)

all angles are congruent

13.

Choose each description of this triangle.

a)

Has all 3 acute angles

b)

Has 1 obtuse angle

c)

Is an isosceles triangle

d)

Is an equilateral triangle

e)

Has at least 2 congruent sides

14.

What do all of these triangle have in common?

a)

The triangles are all equilateral triangles.

b)

The triangles are all acute triangles.

c)

The triangles are all obtuse triangles.

d)

The triangles are all scalene triangles.

15.

What type of triangle will be formed if the points E, F, and C are all connected?

a)

acute

b)

right

c)

obtuse

d)

equilateral