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A rectangular box has dimensions 12 by 16 by 21, as shown here:
12
16
21
Find the length of the diagonal, shown blue dashed, connecting a pair of opposite corners.
Hint: First find the lengths of the heavy red lines. You will use Pythagoras' Theorem twice.
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A rectangular box has dimensions 12 by 16 by 21 as shown here 12 16 21 Find the length of the diagonal shown blue dashed connecting a pair of opposite corners H class=

Respuesta :

Answer: 29

Step-by-step explanation:

d = √(l2 + w2 + h2)

d = √(12^2+ 16^2+ 21^2) = 29

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