Respuesta :

Answer:

117.53 feet^2

Step-by-step explanation:

So to start off we need to find the area of the pentagon.

The formula for the area of a pentagon is weird so I’m not going to write it but you can search it up.

So the area would be 27.53 inches^2.

Now for the triangles.

There is 5 triangles in total with a base of 4 and a height of 9.

So the area of one is base*height divided by two.

So it would be 18.

Now we can just multiply 18 by 5 which is 90 feet^2.

So when we add up 90 and 27.53 we get 117.53 feet^2.

joseaaronlara

Answer:

The answer to your question is SA = 117.5 in²

Step-by-step explanation:

Data

s = 4 in

l = 9 in

n = 5

B = Pa/2

a= 2.75

Process

1.- Calculate B

P = 5 x 4

P = 20 in

-Substitution

B = 20 x 2.75/2

-Result

B = 27.5 in²

2.- Calculate 1/2sln

-Substitution

1/2(4)(9)5)

-Simplification

1/2(180)

-Result

90 in²

3.- Calculate SA

SA = 27.5 + 90

-Result

SA = 117.5 in²

Otras preguntas

ACCESS MORE