To find the area,we can use Heron’s formula: [tex]s = \frac{perimeter \: or \: (a + b + c)}{2 } \\ area = \sqrt{s(s - a)(s - b)(s - c)} [/tex] *Heron’s formula is a formula that use the 3 sides of triangle to find the area.
In this case: s=30/2 s=15
The length of the triangle: 30÷3 =10ft
The area: =_/15(10-15)(10-15)(10-15) =_/15(5)(5)(5) =_/1875 =43 =25_/3 sq.ft
