Question

a classroom is 10m long,8m wide and t m high.find the area of four walls and the floor​

Answer 1

Answer:

Length= 10m

Breadth=8m

Height=t m

So, Area of four walls and the floor is

4*Length*Height + Length*Breadth

=4*10*t + 8*10

=40t+80

=40(t+2) $m^{2}$

Answer 2

1st step

Lenght=10m

Breadth=8m

Height=5m

We have to find area of four walls and the floor

2nd step

First we will find four wall means lateral surface area

Formula of lateral area = =2(l+b)h

=2(10x8)5

=2(80)5

=2x80x5

=160x5

=800

Surface of floor = lxb

=10x8

=80

Total area of classroom

800+80=880cm²

Hence area of four wall of classroom and the floor is 880cm²