A rectangular room 8m long by 5m wide contains 129m square of air. Calculate the height of the room.

I don't know how you know that the height is 8 m.

But let's try it.

V = LWH
129 = 8 * 5 * 8
Nope! That doesn't work.

Let's try it this way.

129 = 8 * 5 * x
129 = 40x
129/40 = x
3.225 = x

A RECTANGULAR ROOM 8M LONG BY 5M WIDE CONTAINS 120M3 CALCULATE THE HEIGHT OF THE ROOM

13

8 metres

3meters

3 meters

3m