[Q&A] A rectangle has a width of 51 centimeters and a perimeter of 210 centimeters. What is the​ rectangle's length?

 
 
 
 
 
 
 
 
 
 

 










Q.
A rectangle has a width of 51 centimeters and a perimeter of 210 centimeters. What is the​ rectangle's length?


* A:
2 (L + W) = 210 L + W = 105 L = 105 - 51 = 54

* A:
2L+2W=P 2L=P-2W 2L=210-2(51) 2L=210-102 2L=108 L=54

* A:
L + W = 105 cm If W = 51 cm, L = 54 cm

* A:
Its length is 54 cm because 2*(54+51) = 210 cm

* A:
(210 - 51 - 51) / 2 ... I think

* A:
P = 2W + 2L 210 = (2 x 51) = 2L 210 = 102 + 2L 108 = 2L L = 54




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