Data:
Model: 41cm
Scale: 1cm/24feet
To convert the measure of the model to the real Tower you use the scale factor
The scale factor is 24ft/cm
To know the height of the Eiffel Tower you multiply the height in the model for the scale factor:
Going against the current, a boat takes 7 hours to make a 120 mile trip. When the boat travels with the current on the return tr
1 answer:
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we have that
we know that
If two lines are parallel
then
their slopes are equals
and
if two lines are perpendicular
then
the product of their slopes is equal to
step 1
find the slope of the line segment AB
step 2
find the slope of the line segment CD
therefore
the answer is
Line segments AB and CD are perpendicular