Answer:
Step-by-step explanation:
sides =8 cm, 17 cm and 15 cm
Area of triangle by Hero's Formula,
S=a+b+c/2
S=17+8+15/2
S=40/2
S=20
A=[tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]
A=[tex]\sqrt{20(20-17)(20-8)(20-15)}[/tex]
A=[tex]\sqrt{(20)(3)(12)(5)}[/tex]
A=[tex]\sqrt{3600}[/tex]
A=60 [tex]cm^{2}[/tex]
