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Lesson 2 Problem SetNYS COMMON CORE MATHEMATICS CURRICULUM 4 4
Lesson 2: Use right angles to determine whether angles are equal to, greater than, or less than right angles. Draw right, obtuse, and acute angles 38
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 -Great Minds. eureka math.org This file derived from G4-M4-TE-1.3.0-06.2015
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Name Date
1. Use a corner of a piece of paper or index card to use as a right angle to determine if each of the following angles is greater than, less than, or equal to a right angle. Label each as greater than, less than, or equal to, and then connect each angle to the correct label of acute, right, or obtuse. The first one has been completed for you.
a. b.
c.
d.
e.
f.
g. h.
i. j.
Less than
Acute
Right
Obtuse
Lesson 2 Problem SetNYS COMMON CORE MATHEMATICS CURRICULUM 4 4
Lesson 2: Use right angles to determine whether angles are equal to, greater than, or less than right angles. Draw right, obtuse, and acute angles 39
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 -Great Minds. eureka math.org This file derived from G4-M4-TE-1.3.0-06.2015
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
2. Use your paper right angle to identify acute, obtuse, and right angles within this painting. Trace at least two of each, label with points, and then name them in the table below the painting.
Acute angle
Obtuse angle
Right angle
Lesson 2 Exit TicketNYS COMMON CORE MATHEMATICS CURRICULUM 4 4
Lesson 2: Use right angles to determine whether angles are equal to, greater than, or less than right angles. Draw right, obtuse, and acute angles 37
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 -Great Minds. eureka math.org This file derived from G4-M4-TE-1.3.0-06.2015
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Name Date
1. Fill in the blanks to make true statements using one of the following words: acute, obtuse, right, straight.
a. A __________________ angle is a corner of a piece of paper and is 90.
b. An __________________ angle is smaller than a right angle.
c. An __________________ angle is larger than a right angle, but smaller than a straight angle.
2. Use a right angle on a piece of paper or index card to identify the angles below.
A B C D E F G H
a. Which angles are right angles? ____________________________________________________
b. Which angles are obtuse angles? __________________________________________________
c. Which angles are acute angles? ___________________________________________________
d. Which angles are straight angles? _________________________________________________
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