Question 5 :
$\frac{-7}{21} \ and \ \frac{3}{9}$ Does this pair represent the same rational number?

Question 6 :
Find the base of triangle when its height and area are 31.4mm and $1256 mm^{2}$ respectively.

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc1a9f78c526e972caefdf.PNG' /> In the given figure, One of the sides and the corresponding height of a parallelogram are 4 cm and 3 cm respectively. Find the area of the parallelogram as shown in the figure above.

Question 8 :
The radius of a circular pipe is 10 cm. What length of a tape is required to wrap once around the pipe (π = 3.14)?

Question 9 :
A circular flower garden has an area of $314 m^{2}$. A sprinkler at the centre of the garden can cover an area that has a radius of 12 m. Will the sprinkler water the entire garden? (Take π = 3.14)

Question 12 :
Write an equation for the following :If you take away 6 from 6 times y, you get 60.

Question 13 :
Solve the following riddle: I am a number, Tell my identity! Take me seven times over And add a fifty! To reach a triple century. You still need forty!

Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c9cbf59b460d7261ea19.JPG' /> In the above fig, find the supplement of each of the following.

Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c9d8f59b460d7261ea2b.JPG' /> In the above fig, how many pairs of equal supplementary angles are there ?

Question 18 :
How many transversals can you draw for two given distinct lines?