1.8: Activity 1G - Measuring Angles

Last updated
Save as PDF

Page ID: 14602

Chloe Branciforte & Emily Haddad
Ventura College & East Los Angeles College via ASCCC Open Educational Resources Initiative

\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

You will need the following equipment for these lab activities:

Protractor; tutorial on how to use a protractor.
360 Protractor (Note: both protractors can be printed. Print on transparency for best results.)

360-degree and 180-degree protractors. — Figure 1.12: Protractor examples. A 360-degree protractor example is on the left, and a classic 180-degree protractor on the right. Both are commonly used for scientific purposes.

1. Using your protractor, measure the angle of the arrow below.

Figure 1.13.1, an acute angle for measurement. — Figure 1.13.1: An acute angle for measurement.

2. Using your protractor, measure the angle of the arrow below.

Figure 1.13.2, an acute angle for measurement. — Figure 1.13.2: An acute angle for measurement.

3. Using your protractor, measure the angle of the arrow below.

Figure 1.13.3, an acute angle for measurement. — Figure 1.13.3: An acute angle for measurement.

4. Using your protractor, measure the angle of the arrow below.

Figure 1.13.4, an obtuse angle for measurement. — Figure 1.13.4: An obtuse angle for measurement.

5. Below is a compass rose, which indicates the cardinal directions. North (N) is always represented as 0°/360°. On the compass below, label:

a. The remaining cardinal directions (S, W, E) in black.

b. The intermediate points (NE, SE, NW, SW) in brown.

c. The intermediate points of the intermediate points (NNE, ENE, ESE, SSE, SSW, WSW, NNW, WNW) in blue.

Figure 1.14, 360-degree protractor overlain with a standard compass rose; north is to the top of the page. — Figure 1.14: 360-degree protractor overlain with a standard compass rose; north is to the top of the page.

Attributions

Figure 1.12: Derivative of Left: “Protractor Rapporteur Degree V1” (CC-BY-SA 3.0; Autiwa via Wikimedia Commons ) and Right: “Rapporteur” (Public Domain; Scientif38 via Wikimedia Commons) by Chloe Branciforte
Figure 1.13: “Angles for measurement” (CC-BY 4.0; Chloe Branciforte, own work)
Figure 1.14: Derivative of “Protractor Rapporteur Degree V1” (CC-BY-SA 3.0; Autiwa via Wikimedia Commons) by Chloe Branciforte