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Which of the following is a secondary source? o a biography of a playwright ob. historic photograph o c. antique weapon od. census data and statistics

7. a line of symmetry divides a design so that every point on one side of the line coincides a point on the other side of it determine how many lines of symmetry each figure below has then draw all the lines of symmetry. show your work

Which development most aided explorers in their ability to set sail the oceans to discover the new world during the age discovery? a. waterproof sails b. the printing press c. map-making devices d. fictional travel accounts