Geometry. proof answer
given angle 1 congruen to angle 4
proof angle 2 congruent to angle 3
has to have geometric statement and then the reasoning (using theorems , postulates etc.)
must be done in 8 steps (statements total)

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two lines are touching the bottom line and then first angle outside , secong inside , 3 rd inside , 4 th outside.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.