SOLUTION: a rectangular room is 7 meter long , 4 meter wide and 2.5 meter high. what is the length of the longest diagonal from one corner to another corner of the room ?

Question 351991: a rectangular room is 7 meter long , 4 meter wide and 2.5 meter high. what is the length of the longest diagonal from one corner to another corner of the room ?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
diagonal of floor:
a^2+b^2=c^2
7^2+4^2
=49+16
=65
sqrt(65)=diagonal of floor.
.
length of the longest diagonal from one corner to another corner of the room:
sqrt(65)^2+2.5^2
=65+6.25
=71.25
sqrt(71.25)=8.44 m
.
Ed
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