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116_G3U7_WB_CA_˙—» ¿º 2011.4.5 8:21 PM ˘ ` 2 PDF_In 2540DPI 150LPI T
116-B1-2
2. Use a triangle ruler to draw a right angles.
Example
a.
b. c.
d. e.
116-B1-2
2. Use a triangle ruler to draw a right angles.
Example
a.
b. c.
d. e.
