Question

20. Meenal and her brother decided to save some
3
?
money for poor children for books and copies.
They painted a room of volume 12y + 8y2 - 204
and save money of labour. Find the dimensions
of the room. Also mention the values depicted by
Meenal and her brother.​

Answer 1

Step-by-step explanation:

The storage structures are constructed near or in the house to tap rainwater in Rajasthan

Answer 2

Step-by-step explanation:

Qns - . Meenal and her brother decided to save some money for poor children for books and copies. They painted a room of volume 12y3 +8y2-20y and save money of labour. Find the dimensions of the room. Also mention values depicted by Meenal and her brother.

Ans -

volume of room painted - 12y³+8y²-20y

volume of a cuboid - L × B × H

so,

L×B×H = 12y³+8y²-20y

• Using Splitting the middle term -

12y³-20y+8y²

12y³-(12+8)y+8y²

12y³-12y-8y+8y²

12y(y²-1)+8(y²-y)

(12y+8)(y²-1)(y²-y)

length - 12y+8

breadth - y²-1

height - y²-y