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s2008m [1.1K]
3 years ago
8

shari’s class is making team pennants for an upcoming field day.they cut the pennants out of a large sheet of paper in the patte

rn shown below. the area of the whole pattern is 1600 cm2. they need to know the length of the pennant base how long is the base of each pennant
Mathematics
2 answers:
Svetllana [295]3 years ago
8 0
In this item, it is assumed that since the pattern is cut out of the paper which is usually a rectangle then, the shape of the pattern is also rectangle. The perimeter of the rectangle is,

           P = 2L + 2W

The area is equal to,
              Area = L x W

If we assume that length and width are equal, in order to maximize the space. 
              1600 cm² = L x L

The value of L from the equation is 40 cm. 
Varvara68 [4.7K]3 years ago
7 0

Answer:

10cm Base

Step-by-step explanation:

Actually the answer is 10 cm for the base.

First step is take 1600cm2 and divide it by 4 (or how many pendents you have) so it'll look like this

1600/4 =400cm2

Then you need to find the area of the Triangles.

Area of the Triangle=1/2xbase xheight

400=1/2xbx80

400=40xb

10=b

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