Answer:
100
Step-by-step explanation:
since its collinear it has to be 180 -80 which equals 100.
It is not differentiable at x=1 since the slope of the tangent line as x -> 1 from the right is 1 while the slope of the tangent line as x->1 from the left is -1
Volume prism= ½•a•c•h
=½•7•11•5
=½•385
=192.5cm³
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