Respuesta :

Use A = (1/2)(a)(p)

Here a is the apothem and p is the perimeter.

Perimeter = side times length of side.

P = 8(10)

P = 80

To find the area, use the formula above.

A = (1/2)(a)(p)

A = (1/2)(12)(80)

A = 480

I hope this helps.