Question

40 point question

l = 20 , b = 15 , h = 10

find diagonal of cuboid​

Answer 1

Answer:

d=9.5

Step-by-step explanation:

If l, b and h denote the length, breadth and height respectively of the cuboid then the length of its diagonal d is given by the formula d = √(l^2+b^2+h^2).

d=√(40+30+20)

d=√90

d=9.486832981      or  d=9.49               and  d=9.5

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Answer 2

Answer:

5√29

Step-by-step explanation:

Diagonal on floor :

√(l^2 + b^2) = √400+225 = 25

Diagonal of room = √(25^2 + 100)

=√725

= √25*29

= 5√29