On a piece of paper, use a protractor and a ruler to construct △abc△abc with ab=8 cmab=8 cm , m∠a=70°m∠a=70° , and m∠b=55°m∠b=55° . what is acac ? 4 cm 6 cm 8 cm 12 cm

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Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?