| 
 
 
| Question 234640:  Triangle has sides of 18 cm, 29 cm, and 47 cm.  What is the area to the nearest cm square?
 Answer by solver91311(24713)
      (Show Source): 
You can put this solution on YOUR website! 
 Ordinarily you would use Heron's Formula to find the area of a triangle with sides measuring
  ,  , and  . 
 
 
 (s\ -\ b)(s\ -\ c)})  
 where
  is the perimeter divided by 2, that is: 
 
   
 Step 1:  Substitute
  ,  , and  to calculate   
 Step 2:  Substitute
  ,  ,  , and  to calculate the area. 
 However, the first statement in your problem is false.  That is to say it is not true that a triangle has sides 18, 29, and 47.  That is because a three-sided figure is not a triangle unless the sum of the measures of the two short sides is GREATER than the measure of the longest side.  Not having a triangle, the question "What is the area..." is absurd.
 
 John
 
  
 | 
  
 | 
 |