How Do You Calculate the Total Area of Rectangles and Triangles Combined?

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Homework Help Overview

The discussion revolves around calculating the total area of combined rectangles and triangles, specifically in the context of determining the amount of screen needed to cover walls with these shapes.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to calculate the areas of various rectangles and triangles using standard area formulas, and they express uncertainty about whether their approach aligns with the problem's requirements.

Discussion Status

Some participants confirm the calculations provided by the original poster, indicating a level of agreement on the area calculations. However, there is no explicit consensus on the overall approach or whether it fully meets the problem's expectations.

Contextual Notes

The original poster notes a potential issue with formatting the area result, which may affect clarity in communication. There is also an indication that the problem may involve specific constraints related to the application of the area calculations.

Kirito123
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Homework Statement



upload_2016-4-29_12-7-12.png


2. Homework Equations
A = l x w
A = b x w / 2

The Attempt at a Solution



I calculated all the areas for the triangles and rectangles. So for the first rectangle (the long one) I did (L)(w) = A. Basically 8 x 2 = 16m2 (this is the same area for the other long rectangle). Now to find the smaller rectangle ill use the same formula A= (L)(W), So 5 x 2 = 10. The area for the smaller rectangles is 10m2. Now all I have left is to find the area of the triangles. I’ll use the formula A = H x B/2. So 2 x 5 = 10, 10/2 = 5m2. So the areas for both triangles are 5m2.So now I am going to add all the areas I got so that I can determine how much screen I need to cover all the walls.

16 + 16 + 10 + 10 + 5 + 5 (Note: I did 16+16 since both rectangles are parallel same with 10+10 and 5+5)

= 62m2Ellen will need about 62m2 of screen to cover all of the rectangular walls and the triangular openings at each end with screen.
I don't know if the way i did is what they were asking for. Any help will do thanks :)
 
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O when it say like 62m2 , its means 62m2 just couldn't write it on here for some reason.
 
Kirito123 said:
O when it say like 62m2 , its means 62m2 just couldn't write it on here for some reason.
Seems to be OK.
 
Ok thanks for confirming it for me.
 

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