McGraw-Hill Grade 4: Chapter 14: Lessons 1-7

An angle measuring 90 degrees is called a(an)

• acute angle

• obtuse angle

• right angle

• straight angle

An angle measuring more than 90 degrees is called a(n)

• acute angle

• obstuse angle

• right angle

• straight angle

An angle measuring less than 90 degrees is called a(n)

• acute angle

• obtuse angle

• right angle

• straight angle

Classify this angle

• acute angle

• obtuse angle

• right angle

• straight angle

Classify this angle:

• acute angle

• obtuse angle

• right angle

• straight angle

Classify this angle:

• acute angle

• obtuse angle

• right angle

• straight angle

Classify this angle:

• acute angle

• obtuse angle

• right angle

• straight angle

Classify this angle:

• acute angle

• obtuse angle

• right angle

• straight angle

Classify this angle:

• acute angle

• obtuse angle

• right angle

• straight angle

An obtuse triangle has how many obtuse angles?

• 0

• 1

• 2

• 3