Understanding Reference Angles

Understanding Reference Angles

Assessment

Interactive Video

Mathematics

8th - 10th Grade

Practice Problem

Hard

CCSS
4.MD.C.5B, HSG.CO.A.1

Standards-aligned

Created by

Amelia Wright

FREE Resource

Standards-aligned

CCSS.4.MD.C.5B
,
CCSS.HSG.CO.A.1
The video tutorial explains how to determine reference angles for given angles in standard position. It covers the definition of a reference angle and demonstrates how to sketch angles of 256, 292, and 105 degrees, identifying their reference angles. The tutorial provides methods to calculate reference angles by subtracting from known angles like 180 or 360 degrees.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a reference angle?

An angle greater than 180 degrees

The positive acute angle formed by the x-axis and the terminal side of an angle

An angle that is always 90 degrees

The angle formed by the y-axis and the terminal side

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the reference angle for an angle in the second quadrant?

Subtract the angle from 90 degrees

Add 90 degrees to the angle

Subtract the angle from 180 degrees

Subtract the angle from 360 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the reference angle for 256 degrees?

76 degrees

104 degrees

124 degrees

24 degrees

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which quadrant does the angle 256 degrees lie?

First quadrant

Fourth quadrant

Second quadrant

Third quadrant

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the reference angle for 292 degrees?

112 degrees

88 degrees

68 degrees

22 degrees

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the reference angle for an angle in the fourth quadrant?

Subtract the angle from 360 degrees

Subtract the angle from 180 degrees

Add 90 degrees to the angle

Subtract the angle from 270 degrees

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the reference angle for 105 degrees?

105 degrees

85 degrees

15 degrees

75 degrees

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

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