DescriptionTransversal 2 (PSF).png English: a line that intersects a system of lines Date 6 June 2020 Source Archives of Pearson Scott Foresman, donated...
DescriptionIbex 2 (PSF).png English: any of several wild goats (genus Capra, especially C. ibex) living chiefly in high mountain areas of the Old World...
DescriptionAmplitude 2 (PSF).png English: Line art drawing of amplitude Source Archives of Pearson Scott Foresman, donated to the Wikimedia Foundation...
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