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Worksheets

Classifying Triangles and Quadrilaterals

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

Using only the information given, classify the triangle below.

a)

isosceles

b)

equilateral

c)

right

d)

scalene

2.

Using only the information given, classify the triangle below.

a)

right

b)

obtuse

c)

isosceles

d)

equiangular

3.

Using only the information given, classify the triangle below.

a)

obtuse

b)

equilateral

c)

acute

d)

right

4.

Using only the information given, classify the triangle below.

a)

obtuse

b)

equilateral

c)

right

d)

scalene

5.

Using only the information given, classify the triangle below.

a)

right

b)

obtuse

c)

isosceles

d)

equilateral

6.

Using only the given information given, classify the triangle below.

a)

isosceles

b)

equilateral

c)

obtuse

d)

scalene

7.

Classify the triangle below by its sides and angles

a)

acute equilateral

b)

acute scalene

c)

obtuse equilateral

d)

right isosceles

8.

Classify the triangle below by its sides and angles.

a)

obtuse scalene

b)

right equilateral

c)

right isosceles

d)

obtuse isosceles

9.

An isosceles triangle has 2 equal sides?

a)

Yes

b)

No

c)

Maybe

10.

An obtuse triangle has an angle that is less than 90o ?

a)

True

b)

False

11.

Are rectangles, squares, and a rhombus Parallelograms?

a)

Yes

b)

No

12.

Quadrilaterals have ____________ .

a)

2 sides

b)

4 sides

c)

3 sides

d)

5 sides

13.

What shape is this quadrilateral below?

a)

rectangle

b)

square

c)

rhombus

d)

parallelogram

14.

What shape is this quadrilateral below?

a)

rectangle

b)

square

c)

trapezoid

d)

rhombus

15.

How many pairs of parallel lines are found in a parallelogram?

a)

one

b)

two

c)

three

16.

What two quadrilaterals only have right angles?

a)

squares and parallelograms

b)

trapezoids and rectangles

c)

squares and rectangles

d)

parallelograms and trapezoids

17.

Are all squares rectangles?

a)

Yes

b)

No

c)

Maybe

18.

The following is a trapezoid, so it must have __________.

a)

4 right angles

b)

3 obtuse angles

c)

only 1 pair of parallel sides

d)

2 perpendicular sides

19.

The following shape is a ____________ so it must have ______________.

a)

Rhombus and 4 equal sides

b)

Square and 4 right angles

c)

Rhombus and 1 pair of parallel sides

d)

Trapezoid and 2 pairs of parallel sides

20.

The length of all the sides of a square are equal. If one side is 2 cm, then how long are the other sides?

a)

4 cm

b)

2 cm

c)

8 cm

d)

6 cm