Respuesta :

To find the area of the triangle

  ⇒ must know the area of the triangle's formula

     ⇒ [tex]\frac{1}{2} *base*height[/tex]

Let's look at the information given:

  • base length ⇒ [tex]15\frac{1}{4}[/tex] in ⇒ [tex]\frac{61}{4}[/tex] (when converted into an improper fraction)
  • height length ⇒ 18 in

Let's solve:

 [tex]Area=\frac{1}{2} *base*height=\frac{1}{2} *\frac{61}{4} *18 = 137.55in^2[/tex]

Thus the area is 137.55 square inches

Hope that helps!