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Do you know your triangles!?

Total questions: 19

Worksheet time: 6mins

Name
Class
Date
1.
What type of triangle is this? 
a)
equilateral
b)
obtuse
c)
scalene
d)
isosceles
2.
What type of triangle is this? 
a)
obtuse
b)
equilateral
c)
acute
d)
right
3.
What type of triangle? 
a)
Acute
b)
Obtuse
c)
Right
d)
Isosceles
4.
What type of triangle is this? 
a)
Acute
b)
Isosceles
c)
Right
d)
scalene
5.
What type of triangle is this? 
a)
Obtuse
b)
Right
c)
scalene
d)
isosceles
6.
What type of triangle is this? 
a)
Scalene
b)
Obtuse
c)
right
d)
isosceles
7.
In a triangle, how many total degrees are there?
a)
100%
b)
180 degrees
c)
it varies
d)
360 degrees
8.
.
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
9.
.
.
What kind of triangle is this?
a)
Acute
b)
Right
c)
Obtuse
d)
Robot
10.
What kind of triangle is this?
a)
Acute
b)
Super
c)
Right
d)
Obtuse
11.
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
12.
What kind of triangle is this?
a)
Acute
b)
Right
c)
Sparkly
d)
Obtuse
13.

Identify all the correct terms to describe the triangle shown.

a)

Obtuse

b)

Equilateral

c)

Isosceles

d)

Right

e)

Acute

14.

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

a)

Equilateral

b)

Scalene

c)

Straight

d)

Isosceles

15.

Why is the triangle classified as isosceles?

a)

All angles are acute

b)

At least two sides are of equal length

c)

At least one angle is acute

d)

All angles are equal

16.

Which triangle can best be described as an equilateral triangle?

a)
b)
c)
d)
17.

Which triangle can best be described as an isosceles triangle?

a)
b)
c)
d)
18.

This is a right-angle triangle because...

a)

it is facing the right way

b)

it has 3 acute angles

c)

it has one 90 degree angle

d)

it does not have one obtuse angle

19.

When classifying a triangle by its sides, what type of triangle has exactly two equal sides?

a)

equilateral triangle

b)

isosceles triangle

c)

scalene triangle

d)

none of the above