The sides of a triangle are in the ratio 5: 12: 13 and its perimeter is 480 m, its area is?  Choose the most appropriate option
A) 150
B) 240
C) 277
D) 261
E) 281
5x + 12x + 13x = 480 =&gt; x = 16   a = 80, b = 192, c = 208   S = (80 + 192 + 208)/2= 
<gadget id="calculator">(80 + 192 + 208)/2</gadget>
<output>240</output>
240   Answer: 240
<result>B</result>
The sides of a triangle are in the ratio 5: 12: 13 and its perimeter is 480 m, its area is?