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Whitney is decorating a rectangular ballroom ceiling with garland. Beginning in a corner, Whitney strings garland along the length of the ceiling, a distance of 42 meters. Next, Whitney strings garland along the width of the ceiling, a distance of 40 meters. Then Whitney strings the garland straight back to the original corner. At this point, how much garland has Whitney used?

Sagot :

Answer: 140

Step-by-step explanation:

A^2+B^2=C^2

40^2+42^2=X^2

1,600+1,764=X^2

3,364=X^2

[tex]\sqrt{3,364}[/tex]= X^2

58=x

Last-

40+42+58=140

Answer:

Step-by-step explanation:

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