Verified answer

Solution:

We can solve it by Heron's formula.

So, semi perimeter will be,

s= 150+120+200=235 cm

So,By herons's formula:-

Area= s(s−a)(s−b)(s−c)

where a=150 cm b=120 cm c=200 cm

By implying values:-

Area= 235(235−150)(235−120)(235−200)

Area= 235×85×115×35

Area=8966.57 cm²