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1.8: Activity 1G - Measuring Angles

GEOS: A Physical Geology Lab Manual for California Community Colleges · LibreTexts

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    From LibreTexts, under CC BY-SA 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    You will need the following equipment for these lab activities:

    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

    This page titled 1.8: Activity 1G - Measuring Angles was last modified on Fri, 06 May 2022 23:54:29 GMT and is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Chloe Branciforte and Emily Haddad (ASCCC Open Educational Resources Initiative) .