Question

$l\left(OP\right)=$ ?(in $cm$)

• A. $1.5$
• B. $3$
• C. $2$
• D. $4.5$

Answer 1

Answer: (A)

$1.5$

$\Rightarrow$ Draw a line segment $MN=6cm$.

$\Rightarrow$ Construct angle of ${60}^{\circ }$ at point N.

$\Rightarrow$ Cut off $NO=3cm$

$\Rightarrow$ Draw a line through $O$ which is parallel to $MN$.

$\Rightarrow$ Take $M$ as a center and radius 4cm, draw an arc on parallel line which formed point P.

$\Rightarrow$ Join $MP$

$\Rightarrow$ Thus, $MNOP$ is required trapezium.

$\Rightarrow$ By using ruler measure length of $OP$.

$\therefore$ $l\left(OP\right)=1.5cm$