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For the triangle below, determine the its area. Round as necessary to the nearest hundredth of a square unit.

 

 Feb 24, 2021
 #1
avatar+294 
+1

Use pythag. 52-32 = height2  <=>  4 = height

 

so the are is (4(3+6))/2 = 18

 

Area = 18

 Feb 24, 2021
 #2
avatar+939 
+1

There is another way.

 

Area = 1/2 * (base) * (height)

         = 1/2 * 9 * sqrt(5^2 - 3^2)

         = 18

 Feb 24, 2021

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