Answer:
13170 to the nearest whole number.
Explanation:
We can use Heron's formula to do this:
Area = √[s(s-a)(s-b)(s-c)] where s = the semi-perimeter.
s = (155+175+260)/ 2
= 295
Therefore the Area = √ 295(295-155)(295-175)(295-260)
= √173460000
= 13170.42.