3 years ago

Help me please,Thanks

2 answers:

Vikki [24]3 years ago

5 0

16.25 cm is the answer.

lord [1]3 years ago

4 0

Multiply all the numbers to get 16 1/4

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2 years ago

zheka24 [161]

Answer:

34 cm

Step-by-step explanation:

The actual question is How many inches of ribbon Peter will need to make the "X".

Using the Pythagorean theorem, the length of the diagonal of a square with 12 cm sides is:

$d^2=12^2+12^2\\d=\sqrt{288}\\ d=16.97\ cm$

Since the "X" requires two diagonals, the length of ribbon required is:

$L=2*16.97\\L=34\ cm$

The length required, rounded to the nearest centimeter, is 34 cm.

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3 years ago

aksik [14]

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4 years ago

Nikolay [14]

Answer:

Step-by-step explanation:

$A^{2} + B^{2} = C^{2} for example \\ 4^{2} + 4^{2} = 16^{2} \\16+ 16 = 32\\32=32$

7 0

3 years ago