Draw a triangle that is both a right triangle and an isosceles triangle. you can use either pencil and paper, or a draw program. 2.label the angles. what are the measurements of the angles that are not equal to 90 degrees? 3.describe the two sides opposite the angles that are not equal to 90 degrees. 4.now draw an equilateral triangle. label the measurements of the angles. can an equilateral triangle ever be a right triangle too? explain your answer. 5.finally, draw a right triangle. can this triangle ever have an obtuse angle? explain your answer.

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to