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  • Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in order to buy the correct amount of material. Calculate the area of the parallelogram to determine how much material should be purchased. Be sure to explain how to decompose this shape into rectangles and triangles. Describe their dimensions and show your work.
 Mar 12, 2021
 #1
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Welll....from the diagram, you can see you have two triangles  (one on each side)

 

area of triangle = 1/2 base*height  = 1/2  * 2 x 10   = 10 ft2   each

  then you are left with a rectangle   13 ft x 10 ft = 130 ft^2

 

130 + 10 + 10 = 150 ft2

 

 

    or you could just use the formula for area of parallelogram     base * height = 15 * 10 = 150 square feet

 Mar 12, 2021
 #2
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Thakk uu ...

Guest Mar 12, 2021

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