Question

Find the volume of a wall 30 cm thick to build a room 10 m ling,8m wide and 3.5 m high leaving 1.06 m3 of the volume for the doors and windows

Answer 1

Answer:

It is given,

walls of a room,

this means the lateral surface area

we know that lateral surface area

=2h(l+b)

=2×5(10+8)

180 {m}^{2}180m

2

\begin{lgathered}length \: of \: the \: paper \: required \\ = \frac{180}{50}\end{lgathered}

lengthofthepaperrequired

=

50

180

=3.6 m is the length of paper required.