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https://web2.0calc.com/questions/quadrilaterals-pls-help

 Apr 4, 2020
 #1
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A rhombus has sides of length 10 cm and one diagonal of length 12 cm. How long is the other diagonal, in cm?

 

1/2  the length of the  other  diagonal = sqrt [ side^2 - (1/2 of other diagonal)^2  ]  =

 

sqrt  [ 10^2  - 6^2 ]  = sqrt  [100 - 36 ]  =   sqrt [64] = 8

 

So....the  other diagonal is twice this  =  16

 

 

cool cool cool

 Apr 4, 2020

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