Classifying Triangles

by Holly Rickerl

| 11 QuestionsNote from the author:

Used for a STEM class

1

2

Triangles can be classified in two ways. By looking at the ______ and the ______ .

2

1

When measuring the sides, triangles can be classified as acute, scalene and isoceles.

True

False

3

1

When measuring the angles, triangles can be classified as acute, equilateral and right.

True

False

4

2

Draw an obtuse triangle below.

5

2

Draw an equilateral triangle.

6

1

A triangle has sides measuring 8 inches, 5 inches and 4 inches. How would you classify it?

scalene

obtuse

equilateral

isosceles

equilateral

7

2

A triangle has two equal sides and a 90 degree angle. Classify it by its angle and its sides and write it below.

8

1

True

False

Remember that the sum of the angle measures in the triangle is 180 degrees. This is true for all triangles. ALWAYS.

9

1

A triangle has two angles measuring 60 degrees, and 80 degrees. The measurement of the final angle is 50 degrees.

True

False

10

1

What is the measurement of the third angle? One angle = 100 degree, one angle = 40 degrees.

60 degrees

90 degrees

40 degrees

50 degrees

11

1

A ______ triangle has no sides that are the same length.

Add to my formatives list

Formative uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to the Terms of Service and Privacy Policy.