Respuesta :

Answer:

Height of the sail is 9 feet.

Step-by-step explanation:

Since sail is in the shape of a triangle and the formula of a triangle is

Area = (1/2)×Base×Height

Area of the sail has been given in the question and we have to calculate the height of the sail.

40.5 = (1/2)× Height× Height ( since base = height)

40.5×2 = height² = 81

height = √81 = 9 feet.

The area of the sail depends on its base and height. The height of the sail is 9 feet.

What is the area of the triangle?

The area of a triangle is defined as the total region that is enclosed by the three sides of a triangle.

Given that area, A of the sail is 40 1/2 square feet and the base b and height h of the sail are equal.

Since the shape of a sail is triangular, hence the area is calculated by the formula of the area of the triangle.

[tex]A = \dfrac {1}{2} \times b\times h[/tex]

A = 81/2 and b = h, so

[tex]\dfrac {81}{2} = \dfrac {1}{2} \times h\times h[/tex]

[tex]h^2 = 81[/tex]

[tex]h = 9 \;\rm feet[/tex]

Hence we can conclude that the height of the sail is 9 feet.

To know more about the area of the triangle, follow the link given below.

https://brainly.com/question/15442893.