Quiz about Classifying Triangles by Sides and Angle Measures

Question 1

Name this triangle by its sides

Accepted Answer

scalene

Answer

isosceles

Answer

equilateral

Answer

acute

Question 2

Name this image by its angles.

Accepted Answer

acute

Answer

obtuse

Answer

right

Answer

equiangular

Question 3

Name this triangle by its sides.

Accepted Answer

equilateral

Answer

scalene

Answer

isosceles

Answer

obtuse

Question 4

Name this triangle by its angles, pick all that apply

Accepted Answer

acute

Accepted Answer

equiangular

Answer

obtuse

Answer

right

Question 5

Name this triangle by its angle and sides.

Accepted Answer

right, scalene

Answer

acute, scalene

Answer

obtuse scalene

Answer

right, isosceles

Question 6

Name this triangle by its angles and sides.

Accepted Answer

acute, scalene

Answer

acute, isosceles

Answer

obtuse, equilateral

Answer

equiangular, equilateral

Question 7

Name this triangle by its angles and sides.

Accepted Answer

acute, isosceles

Answer

acute, scalene

Answer

acute, equilateral

Answer

right, scalene

Question 8

Name this triangle by its angles and sides.

Accepted Answer

equiangular, equilateral

Answer

acute, isosceles

Answer

obtuse, scalene

Answer

right, isosceles

Question 9

If all of the sides are congruent then all of the angles must also be congruent.

Accepted Answer

true

Answer

false

Question 10

What would the measure of the third angle equal?

(Reminder: all 3 angles add up to 180 degrees)

Accepted Answer

55 degrees

Answer

125 degrees

Answer

43 degrees

Answer

39 degrees

Question 11

If the picture shown is an isosceles triangle, what is the measure of the 3rd angle?

Accepted Answer

70

Answer

40

Answer

90

Answer

180

Question 12

What is the measure of the missing angle?

(Reminder: all 3 angles add up to 180 degrees)

Accepted Answer

45 degrees

Answer

135 degrees

Answer

90 degrees

Answer

35 degrees

Question 13

Classify by angles and sides (2 answers)

Accepted Answer

obtuse

Accepted Answer

scalene

Answer

acute

Answer

isosceles

Question 14

Find the measure of the third angle.

(Reminder: all 3 angles add up to 180 degrees)

Accepted Answer

35 degrees

Answer

90 degrees

Answer

180 degrees

Answer

45 degrees

Question 15

Name the triangle by its angles and sides.(2 answers)

Accepted Answer

scalene

Accepted Answer

right

Answer

acute

Answer

isosceles

Question 16

If all of the angles are equal, what does each angle equal?

(Reminder: the property of a triangle is all angles add up to 180 degrees).

Accepted Answer

60 degrees

Answer

180 degrees

Answer

30 degrees

Answer

90 degrees

Question 17

The triangle shown is an isosceles triangle , so what do we know about one of the other sides?

Accepted Answer

Side BT = 8

Answer

Side AT = 8

Answer

One of them equals 8 but I don't know which.

Answer

I give up

Question 18

An obtuse triangle has one

Accepted Answer

obtuse angle

Answer

acute angle

Answer

two obtuse angles

Answer

a right angle.

Question 19

How do you know that both of these triangles are right triangles? (2 answers)

Accepted Answer

90 degrees

Accepted Answer

box in the corner

Answer

90 + 90 = 180

Answer

They look similar

Question 20

Name this triangle by its angles and sides.

Accepted Answer

acute isosceles

Answer

obtuse, isosceles

Answer

right, scalene

Answer

acute, equilateral

Classifying Triangles by Sides and Angle Measures

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