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navik [9.2K]
3 years ago
14

2. The width of a rectangle is 12 inches less than its length. The perimeter of the rect-

Mathematics
1 answer:
Alona [7]3 years ago
5 0

Answer:

P= 2*Lenght + 2*Width

Since the perimeter is 56 inches we can solve for the lenght with this equation:

56 in = 2*12in + 2*Length

And solving for the length we got:

Length = \frac{56in -24 in}{2} 16 in

So then the lenght = 16 inhes and the width of 12 inches

Step-by-step explanation:

For a rectangle of width 12 inches and lenght y inches we know that the perimeter is given by:

P= 2*Lenght + 2*Width

Since the perimeter is 56 inches we can solve for the lenght with this equation:

56 in = 2*12in + 2*Length

And solving for the length we got:

Length = \frac{56in -24 in}{2} 16 in

So then the lenght = 16 inhes and the width of 12 inches

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What is AE and the perimeter of BCDE? Round your answer to the nearest tenth.
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Answer:

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Step-by-step explanation:

Let the side AE be 'x'.

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CD=\sqrt{AD^2-AC^2}\\\\CD=\sqrt{(72+43.2)^2-88^2}=74.344

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Perimeter = BE + ED + CD + BC

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