Question

$\text{The actual length of the side AD in the rectangular}$$\text{sail ABCD according to the scale:}1cm=2ftis$

• A. $12ft$
• B. $8ft$
• C. $2ft$
• D. $4ft$

Answer 1

The correct option is B $8ft$


From the graph, we can see that both points A and D have same x-coordinate.

So, the distance between the points will be the difference of their y-coordinates.

Co-ordinates of the point A = (4,6)
Co-ordinates of point D = (4,2)

∴ Distance between points A and D is
$=(6-2)cm=4cm$

$\text{The scale is given as:}1cm=2ft$

$\text{So, the actual length DA is =}(4\times 2)ft$
$=8ft$