
Concept explainers
(a)
To explain: Acute angle.
(a)

Explanation of Solution
Given information: The given angle is acute angle.
Explanation: The angle which is less than 90° in measure is known as acute angle.
Therefore, the angle that can be drawn in an acute angle is also acute.
(b)
To explain: Right angle.
(b)

Explanation of Solution
Given information: The given angle is right angle.
Explanation: The angle which is equal to 90° in measure is known as right angle.
Therefore, the only angle that can be drawn in the right angle is acute. If the rays of the ray diagram lie on the right angle forming lines, then a right angle also can be drawn.
(c)
To explain: Obtuse angle.
(c)

Explanation of Solution
Given information: The given angle is obtuse angle.
Explanation: The angle which is greater than 90° and less than 180° in measure is known as obtuse angle.
Therefore, the angle that can be drawn in the obtuse angle is acute, right, and obtuse.
(d)
To explain: Straight angle.
(d)

Explanation of Solution
Given information: The given angle is straight angle.
Explanation: The angle which is equal to 180° in measure is known as straight angle.
Therefore, the angle that can be drawn in the obtuse angle is acute, right, and obtuse. If the rays the ray diagram lie on the forming straight angle’s line, then straight angle is also can be drawn.
Chapter 8 Solutions
BIG IDEAS MATH Integrated Math 1: Student Edition 2016
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