Write the name of the geometric tool which is used to measure the angles. 

Draw a line and mark a point $\mathrm{R}$ below it at a distance of $5.4 \mathrm{cm}$ Through $\mathrm{R}$ draw a line parallel to the given line.

Draw a line segment measuring $7.8 \mathrm{cm}$. Mark a point $\mathrm{B}$ above it at a distance of $5 \mathrm{cm}$. Through $\mathrm{B}$ draw a line parallel to the given line segment.

Find the distance between the given lines using a set square at two different points on each of the pairs of lines and check whether they are parallel.

State $\text{'}\mathrm{T}\text{'}$ for true and $\text{'}\mathrm{F}\text{'}$ for false and select the correct option.

$\left(\mathrm{i}\right)$ Set-squares are useful to draw parallel lines.

$\text{ (ii) }13.5+4\frac{3}{8}+9\frac{1}{8}+6\frac{4}{8}>12.5+5\frac{1}{2}+8+14.6$

$\left(\mathrm{iii}\right)$ Zero is less than every negative number.

$\left(\mathrm{iv}\right)$ $4$ more than $-7$ is $-3$

Solve the given crossword puzzle and then fill up the given boxes.

Across

$2.$ Four sided closed figure is known as _____.

$4.$ To draw a _____, we need only two sides.

$6.$ An instrument to draw a line.

$7.$ In a Rhombus, diagonals intersect at _____ angle.

Down

$1.$ To draw a _____, we need only one side.

$3.$ An instrument used to draw an angle of $90°$.

$5.$ The sum of the _____ angles of a quadrilateral is $360°$.

$8.$ _____ measurements can determine a quadrilateral uniquely.