Question Text
Question 1 :
What is the cofficient of the term $-20$ in the expression $x^2y^2 -10x^2y +5xy^2-20$?
Question 3 :
Add the expression: $ab – bc$, $bc – ca$, $ca – ab$
Question 4 :
What will be the product of first monomial $-5y$ and second monomial $3x^2$ ?
Question 7 :
A rectangular piece of paper 11 cm $\times$ 4 cm is folded without overlapping to make a cylinder of height 4 cm. What is the volume of this cylinder?
Question 8 :
Find the area of a rhombus whose side is 5 cm and whose altitude is 4.8 cm.
Question 9 :
The area of a rhombus is $240 cm^2$ and one of the diagonals is 16 cm. The other diagonal is ?
Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cedcf59b460d7261f0bf.jpg' />
In the above image, there is a hexagon MNOPQR of side 5 cm. Aman and Ridhima divided it in two different ways. Find the area of this hexagon using aman's way.
Question 11 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cef5f59b460d7261f0e1.png' />
In the above image, there is a pentagonal shaped park as shown. The area of this park is ?
Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d016f59b460d7261f276.png' />
From the above figure, a square and a rectangular field with measurements as given have the same perimeter. Which field has a larger area?
Question 13 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cee3f59b460d7261f0c8.jpg' />
In the above image, find the volume.
Question 19 :
A particular star is at a distance of about $8.1\times10^{13}$ km from the Earth. Assuring that light travels at $3\times10^8$ m per second, find how long does light takes from that star to reach the Earth.