Respuesta :

andytran027

Answer:

Area = 657 ft^2

Step-by-step explanation:

Heron's Formula: [tex]S=\frac{a+b+c}{2}[/tex] ,

Area = [tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]

[tex]s=\frac{20+21+29}{2}=\frac{70}{2} =45 ft[/tex]

[tex]Area=\sqrt{45(45-20)(45-21)(45-29)}\\\\=\sqrt{45(25)(24)(16)}\\\\=\sqrt{432000}[/tex]

= 657.267069

Area = 657 ft^2

Answer:

210 ft²

Step-by-step explanation:

Take the base and height of the triangle.

  • Base = 21 ft.
  • Height = 20 ft.

Solving for area :

  • A = 1/2 x base x height
  • A = 1/2 x 21 x 20
  • A = 10 x 21
  • A = 210 ft²